The effects of videotape feedback on the standing broad jump performances of mildly and moderately mentally retarded adults by Laura Jean Sim A thesis submitted in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE in Physical Education Montana State University © Copyright by Laura Jean Sim (1980) Abstract: This study was conducted to examine the effects of videotape feedback on mentally retarded adults' performance of a selected movement task. Videotape recordings of subjects' performances of the standing broad jump were replayed to the subjects to provide them with feedback information regarding their jumping performances. Reviewed research and literature revealed that feedback plays a critical role in learning and that visual feedback is the most conducive mode of feedback in motor learning. It was found that the motor proficiency of the mentally retarded is substandard to that of the non-retarded population. Some researchers have speculated that the consistent motor deficiencies found in the retarded may be a result of their difficulties with interpreting and processing abstract forms of feedback due to their subaverage cognitive level. Implications were made in some of the sources reviewed that videotape may help enhance motor skill acquisition and mastery by the mentally retarded by presenting concrete visual feedback about movement performance. An assessment tool designed to evaluate the development of jumping patterns in young children was utilized to assess the mentally retarded subjects' jumping skills before and after the administration of the experimental treatment. Three groups of subjects were involved in the investigation, with one group receiving no feedback, a group receiving verbal cues about their jumping performances and one group receiving verbal cues while viewing a videotape recording of their standing broad jump performances. Descriptive statistics were computed for qualitative and quantitative aspects of the initial and final performances of the subjects. No significant difference was found between the three groups' performances following the completion of the experimental treatment. No significant differences were found between the pretreatment and posttreatment performances in any of the three groups. It was concluded that videotape feedback, as administered in this study, has no significant effect on the learning or mastery of a motor task by mentally retarded adults. It was suggested that factors such as distractibility and inattentiveness of the subjects may have affected the results of this investigation. It was also surmised that because the subjects were at a beginning level in performances of the standing broad jump they may have lacked an appreciation of relevant aspects of the replayed performances, and hence may have not recognized many of the errors in performance.  STATEMENT OF PERMISSION TO COPY In p resen t ing t h i s t h e s i s in p a r t i a l f u l f i l lm e n t o f the requirements f o r an advanced degree a t Montana S t a t e U n iv e r s i ty , I agree t h a t the L ib rary sh a l l make i t f r e e l y a v a i l a b l e f o r in spec t ion . I f u r t h e r agree t h a t permission f o r ex ten s ive copying o f t h i s t h e s i s f o r s c h o la r ly purposes may be gran ted by my major p ro f e s so r , o r , in h i s absence , by the D i r e c to r o f L i b r a r i e s . I t i s understood t h a t any copying or pub l i c a t i o n o f t h i s t h e s i s f o r f in an c ia l gain sh a l l not be allowed w i thou t my w r i t t e n permiss ion . Date O ' U CU i c j r - \ \A.Sfo <5 THE EFFECTS OF VIDEOTAPE FEEDBACK ON THE STANDING BROAD JUMP PERFORMANCES OF MILDLY AND MODERATELY MENTALLY RETARDED ADULTS by ' LAURA JEAN SIM A t h e s i s submitted in p a r t i a l f u l f i l lm e n t o f the requirements f o r the degree o f MASTER OF SCIENCE in Physical Education Approved: Chai rperson, t iraouate committee Graduate Dean MONTANA STATE UNIVERSITY Bozeman, Montana August, 1980 ■ -■ ■ TABLE. OF CONTENTS Chapter Page VITA . ..................................................................................................... i i TABLE OF CONTENTS...................................................................... .... . . i i i LIST OF TABLES............................................................... v ABSTRACT............................................ .... ...........................vi I INTRODUCTION . , . ........................... ............................................... ... I Sta tement of Problems .......................... . . . 4 Hypotheses, 5 D e l im i t a t i o n s ...................... , , ...................... ......................... 5 D e f in i t io n s 6 Limita t ions . , . ....................................................... 7 Basic A s sump t io n s ........................... .... , , . ........................... 8 II REVIEW OF LITERATURE .................................... . . . . . . . . . 9 Motor Learning. IO Motor Learning and the Menta lly Retarded, 14 Feedback and the Mentally Retarded. 19 Summary............................................ .... , . ...................... .... 23 I I I METHODOLOGY. ........................... .................................. .... 24 S u b j e c t s ........................... 24 S c h e d u l e . .................................................... .... i . ...................... 25 Ins t rumenta t ion ................................................ . . . . . . . 27 Assessment Procedures . .................................. 28 Treatment Procedures. ................................................................ 30 Analysis o f Data .....................................................................................34 Iv Chapter . Page IV RESULTS'............................................ 36 Desc r ip t ive S t a t i s t i c s ...................... , . . ...................... 35 Hypotheses T e s t i n g ........................................... 35 ■ Hypothesis I . . .................................... 37 Hypothesis 2 . , . .......................... . ............................... 39. V DISCUSSION............................................ 41 Differences Between the Final Performances o f the Three G r o u p s ...................... ....................................... . . 4% Differences Between the I n i t i a l Performance and Final Performance o f Each Group, . , . ...................... 42 Summary...................... 45 VI SUMMARY, CONCLUSIONS AND RECOMMENDATIONS.................................. 47 Summary , ................................... ........................................... .... . . 47 Purpose. . ......................................................... 47 P r o c e d u r e s ............................................ . , . ...................... 43 Resu l t s . , .................. 48 Conclusions, , ...................... 49 Recommendations, . , . ............................. 50 APPENDICES. ...................... .... . . ........................................ 52 Appendix A. L e t t e r of Correspondence and Subjec t Consent F o rm ..................; ........................................................ 53 Appendix B. Standing Broad Jump Procedures and McClenaghan and Gallahue^s Assessment Tool . . . . 55 Appendix C, S tandard ized Verbal Feedback Cues . . . 60 BIBLIOGRAPHY 61 VLIST OF TABLES Table Page 1 Means and Standard Devia tions o f the I n i t i a l and Final P r o f i l e Scores o f Each Group, t '-Values and P r o b ab i l i t y o f the In t ragroup Comparisons o f the I n i t i a l and Final Performance, 26 2 Means and Standard Devia tions of the I n i t i a l and Final Dis tance Measurements o f Each Group, t - Values and P ro b ab i l i t y o f the In t ragroup Comparisons o f the I n i t i a l and Final Performance. . , . . 26 3 Degrees o f Freedom, Sum o f Squares , Mean Squares , F-Ratiq and F -P robab i l i t y o f th e In te rgroup Comr pari son. o f the Final Performance P r o f i l e Scores of Each G r o u p ...................................................................................... ...... 38 4 Degrees o f Freedom, Sum of Square's, Mean Squares , F-Ratib and F -P robab i l i ty o f the In te rgroup Com­ par ison o f the Final Performance Distance Measure­ ments of Each G r o u p .........................................................................38 ABSTRACT This study was conducted to examine the e f f e c t s o f videotape fe ed ­ back on menta l ly r e t a rd ed a d u l t s ' performance o f a s e l e c ted movement ta sk . Videotape record ings o f s u b j e c t s ' performances o f the standing broad jump were rep layed to the sub jec t s to provide them with feedback in format ion regard ing t h e i r jumping performances. Reviewed re sea rch and l i t e r a t u r e revea led t h a t feedback plays a c r i t i c a l ro l e in l e a rn ing and t h a t v isua l feedback i s the most con­ ducive mode o f feedback in motor l e a rn ing . I t was found t h a t the motor p ro f ic iency o f the menta l ly r e t a rd ed i s substandard to t h a t o f the non- r e ta rded popu la t ion . Some r e s ea rche r s have specu la ted t h a t the con­ s i s t e n t motor d e f i c i e n c i e s found in the r e t a rd ed may be a r e s u l t o f t h e i r d i f f i c u l t i e s with i n t e r p r e t i n g and process ing a b s t r a c t forms of feedback due to t h e i r subaverage cogn i t iv e l e v e l . Impl ica t ions were made in some of the sources reviewed t h a t v ideo tape may help enhance motor s k i l l a c q u i s i t i o n and mastery by the menta l ly r e t a rd ed by p re sen t ing concre te v isua l feedback about movement performance. An assessment tool designed to eva lu a te the development o f jumping p a t t e rn s in young c h i ld ren was u t i l i z e d to a s s e s s the menta l ly re ta rded s u b j e c t s ' jumping s k i l l s be fo re and a f t e r the adm in i s t r a t ion of the experimental t r e a tmen t . Three groups o f s ub je c t s were involved in the i n v e s t i g a t i o n , with one group r e ce iv ing no feedback, a group rece iv ing verbal cues about t h e i r jumping performances and one group rece iv ing verbal cues whi le viewing a v ideotape reco rd ing o f t h e i r s tanding broad jump performances. Desc r ip t ive s t a t i s t i c s were computed f o r q u a l i t a t i v e and q u a n t i t a ­ t i v e a spec ts o f the i n i t i a l and f i n a l performances o f the s u b j e c t s . No s i g n i f i c a n t d i f f e r e n c e was found between the th r e e groups ' performances following the completion of the exper imenta l t r e a tmen t . No s i g n i f i c a n t d i f f e r en ce s were found between the p re t re a tmen t and po s t t r e a tmen t pe r ­ formances in any o f the t h r e e groups. I t was concluded t h a t v ideotape feedback, as admin is te red in t h i s s tudy, has no s i g n i f i c a n t e f f e c t on the l e a rn ing or mastery o f a motor ta sk by menta lly r e t a rd ed a d u l t s . I t was suggested t h a t f a c t o r s such as d i s t r a c t i b i l i t y and i n a t t e n t i v e n e s s o f the s ub je c t s may have a f f e c t ed the r e s u l t s o f t h i s i n v e s t i g a t i o n . I t was a l so surmised t h a t because the sub jec t s were a t a beginning leve l in performances o f the s tanding broad jump they may have lacked an app rec ia t ion o f r e l evan t aspects o f the replayed performances , and.hence may have not recognized many of the e r r o r s in performance. vi t J CHAPTER I INTRODUCTION Documented r e s u l t s from informal observa t ion and o b je c t iv e a s s e s s ­ ment have revealed a c o n s i s t e n t l y substandard level of motor perform­ ance and physica l f i t n e s s in the menta lly r e ta rded (Rar ick , Widdop and Broadhead, 1970; Rar ick , 1973; Ross, 1969.) Unfor tuna te ly , l i t t l e research has been done in a t tempt to determine the reasons why the re ta rd ed have such d i f f i c u l t i e s acqu ir ing and mastering motor s k i l l s ' ( Crat t y , 1980; Rar ick , 1973.) This lack o f empirical evidence combined with the incomplete unders tanding of the neuromuscular mechanisms underlying the motor l e a rn ing process compound the problem o f explaning the motor d e f i c i e n c i e s o f the re ta rded [Rar ick , 1973.) In reviewing va r ious viewpoints regard ing motor performance and the menta l ly r e t a r d e d , Rarick (1973) revea led the t r a d i t i o n a l opinion t h a t the r a t e of l e a rn ing and the degree o f complexity o f motor s k i l l s t h a t one could master depended on an i n d i v i d u a l ' s level of i n t e l l e - gence. Many educa tors in the pas t assumed the menta l ly r e t a rd ed to be incapable of lea rn ing or mastering motor s k i l l s , and thus neg lec ted to provide the r e t a rd ed with physical education or movement exper iences . The in d i s pu tab le evidence o f bene f ic ia l e f f e c t s o f a c t i v i t y and general f i t n e s s to the mental and physical hea l th of normal ind iv idua l s (Astrand and Rodahl, 1977; Wi!more, 1976) app l ie s to the excep t iona l popula tion as well ( S h e r r i l l , 1977.) The re cen t l e g i s l a t i v e t rends 2regard ing the r i g h t s o f the handicapped have recognized the important ro l e physical a c t i v i t y plays in the remedia t ion o f handicapped in d iv id u a l s , ev iden t by the f a c t t h a t Publ ic Law.94-142, The Education fo r All Handicapped Ch i ld r e n ' s Act o f 1975, s p e c i f i c a l l y mandates physical educa t ion . Recent r e s e a rch 'h a s a l so shed l i g h t on the r e l e ­ vance, o f a c t i v i t y f o r the handicapped by provid ing some evidence o f the b ene f i t s o f p a r t i c i p a t i o n in var ious types of.movement a c t i v i t i e s . Levy (1974) contended t h a t the development of motor s k i l l s c on t r ibu ted in a p o s i t i v e way to voca t iona l and soc ia l adjustment o f handicapped persons. Rarick (1973) c i t e d numerous s tud ie s which repo r ted s i g n i f i c a n t improvements in motor performance of r e t a rd ed c h i ld ren as a r e s u l t o f s t r u c tu r e d physica l educa t ion programs. C ra t ty (.1980) be l ieved t h a t with an improvement in motor performance came a r e s u l t a n t in c rease in s e l f confidence and a w i l l in gne s s to p a r t i c i p a t e . i n movement a c t i v i t i e s , al lowing more o p po r t u n i t i e s f o r the handicapped to develop t h e i r motor s k i l l s to a degree comparable to t h e i r non-d isab led peer s . In l i g h t o f the p o t e n t i a l c o n t r ibu t ion s movement exper iences may make to an excep t iona l i n d i v i d u a l ' s well be ing , r e s e a rch e r s involved in the area o f motor l e a rn ing and the re t a rd ed have expressed a need fo r f u r t h e r i n v e s t i g a t i o n s . One area t h a t was sugges ted by some re sea rche r s to be an impor tant cons ide ra t ion in f u r t h e r work was teaching methods which may a id and enhance motor s k i l l a c q u i s i t i o n by the developmentalIy d i s ab led (Levy, 1974; C r a t t y , 1980,) 3During the l a s t twen ty - f ive y e a r s , re sea rch concerned with the psychomotor domain has revea led the v i t a l r o l e feedback plays in l e a rn ing . S tud ies have shown t h a t knowledge o f r e s u l t s or in format ion regard ing performance i s e s s e n t i a l to s k i l l a c q u i s i t i o n and, in f a c t , are considered the most c r i t i c a l f a c t o r s in the l e a rn ing process (Oxendine, 1972; DelRey, 1971; S inge r , 1968.) In a dd i t ion to sub­ s t a n t i a t i n g these f i n d i n g s , o th e r s t u d i e s have in v e s t ig a t e d the e f f e c t iv en e s s o f d i f f e r e n t modes o f feedback in provid ing in format ion c ruc ia l to l e a r n in g , and have found v i sua l feedback to be the most va luab le in the area o f motor l e a rn ing (Adams, 1977; Knowles, 1973.) Motor s k i l l a c q u i s i t i o n i s a thoughtfu l process t h a t requ i re s comprehension and concep tu a l i z a t io n o f a t a sk based on informat ion provided by feedback. Defic iency in s k i l l development may r e s u l t from d i f f i c u l t i e s in i n t e r p r e t i n g the feedback and forming a mental image o f the movement (Oxendine, 1972.) I t has been specu la ted t h a t one exp lana t ion f o r the l e a rn ing and performance d e f i c i e n c i e s o f the r e t a r d s ed may be t h a t they a re unable to pe rce ive and p r o c e s s ' informat ion to a degree necessary to develop an in t e rn a l image of a c o r r e c t movement and thus have no s tandard on which to base performance co r r e c t ion s (Baumeister, 1966.) The low cogn i t ive and perceptual l e v e l s of the menta lly r e ta rd ed may be such t h a t movement e r r o r s obvious to non- re ta rded ind iv idua l s go unnoticed by the r e t a rd ed . A more tang ib le way of provid ing e r r o r informat ion could p o t e n t i a l l y in c re a se the 4the oppor tun i ty f o r the developmenta lIy d isab led to recognize m is takes , while a t the same time r e l a y comprehensive informat ion regard ing c o r r e c t performance. Videotape record ings may be a va luab le tool in accomplishing t h i s by provid ing concre te feedback t h a t al lows an ind iv idua l to view a performance and become aware o f e r r o r s i f pointed out (C a n t r e l l , 1977; S inge r , 1968.) Videotape rep lay could conceivably a id in the concep tu a l i z a t io n o f a p re sc r ibed movement, a process which may be l im i t ed to a c e r t a i n degree by the cogn i t iv e leve l o f the menta lly r e t a rd ed . Considering the p o te n t i a l b e n e f i t s o f physical a c t i v i t y on the well being o f the r e t a r d e d , th e re e x i s t s a need fo r the development of techniques t h a t w i l l enhance motor s k i l l a c q u i s i t i o n and mastery by the re t a rd ed . Because feedback plays a v i t a l r o l e in any lea rn ing p rocess , i n v e s t i g a t i o n o f f e a s i b l e modes o f feedback w i l l a id in the de te rmina t ion of e f f e c t i v e methods o f teach ing motor s k i l l s to the developmental!; / d i s ab l ed . This i n v e s t i g a t i o n considered the use of videotape record ings as a feedback mode in the development o f jumping s k i l l by a group o f men ta l ly r e ta rded a d u l t s . Sta tement of the Problems The problems of t h i s study were to : ( I ) Examine the e f f e c t s o f v ideo /verbal feedback on the performance o f the s tanding broad jump by mildly and moderately menta l ly re ta rded a d u l t s ; (2) compare the standing 5broad jump performances o f a group re ce iv ing v ideo /verba l feedback, a group r e ce iv ing only verbal feedback and a- group rece iv ing no feedback ; and (3) determine the r e l a t i o n s h i p between v ideo /verba l and verbal feedback and performance. Hypotheses The following null hypotheses were formula ted: ( I ) There w i l l be no s i g n i f i c a n t d i f f e r en c e (p < .05) in the performance o f the standing broad jump between the Control Group, the Verbal Feedback Group and the Video/verbaI Feedback Group fo llowing the exper imental t r e a tmen t ; and (2) th e re w i l l be no s i g n i f i c a n t d i f f e r e n c e (p < .05) between the i n i ­ t i a l and f i n a l performance o f the s tand ing broad jump in any of the groups. De l im ita t ions This s tudy was de l im i ted to s ix te en m ild ly and moderately menta l ly r e ta rded male and female a du l t s p a r t i c i p a t i n g in a weekly handicapped r e c r e a t io n program a t Montana S t a t e Un ive r s i ty in Bozeman, Montana, I t was f u r t h e r de l im i ted to s ix t r ea tmen t s e s s i o n s , conducted once weekly beginning on April 17, 1980 and cont inu ing u n t i l May 19, 1980, in which s tandard ized verbal cues were given a lone and in conjunct ion with videotape record ings in i n v e s t i g a t i n g the e f f e c t s of v ideotape feedback on the s u b j e c t s ' performance o f the s tand ing broad jump. Each s u b j e c t ' s 6performance of the s tand ing broad jump p r i o r to r e ce iv ing any experimental t re a tmen t was evaluated on April 10, 1980, and a f in a l assessment was made on June 5, 1980 fo l lowing the completion of the experimental t r e a tmen t . De f in i t ions Developmentally D isab led- - Developmentally d i s ab led in t h i s study r e f e r s s p e c i f i c a l l y to the menta l ly r e t a r d e d , de f ined by the American Assoc ia t ion on Mental Defic iency as i n d iv idua l s having s i g n i f i - . c an t ly subaverage I n t e l legence e x i s t i n g concu r ren t ly with maladaptive behav io r s . This cond i t ion man ife s t s i t s e l f between b i r t h and twenty^one years o f age (Chinn, Drew and Logan, 1975.) Mildly Mentally Retarded-- A mild ly men ta l ly r e t a rd ed ind iv idua l i s one whose IQ i s between 52 and 67 on the S tan fo rd -B ine t s c a le who may become s e l f suppo r t ive w i th proper t r a i n i n g and who func t ions academically a t approximate ly a f o u r t h grade leve l (C ra t ty , 1974,) Moderately Mentally Re ta rded- - A moderately menta l ly r e t a rd ed ind iv idua l i s defined as a person with an IQ between 36 and 51 on the Stanford Bine t s c a le who i s u sua l ly able to master bas ic soc ia l and s e l f care s k i l l s and academically func t ion s a t a level comparable to a f i r s t grade c h i ld (C r a t t y , 1974.) Verbal Feedback— Verbal feedback in t h i s study r e f e r s to spoken i n ­ formation in the form of s tandard ized verbal cues regard ing ways I 7to improve performance o f the s tand ing broad jump. (See Appendix C f o r the s tanda rd ized verbal cues used in t h i s i n v e s t i g a t i o n . ) Video/yerbal Feedback—■Video/verbal feedback in t h i s i n v e s t ig a t i o n r e f e r s t o . t h e use o f v ideotape record ings o f a s u b j e c t ' s standing broad jump performance in combination with the s tanda rd ized verbal cues to provide in format ion about t h a t s u b j e c t ' s performance. L im i ta t ions Because of the l im i t ed number o f menta l ly r e ta rded ind iv idua ls l i v in g in Bozeman, Montana, the popu la t ion o f t h i s study was very small and a random s e l e c t i o n o f sub jec t s was not f e a s i b l e . This study was a lso l im i t ed by the f a c t t h a t the sub je c t s were a v a i l a b l e f o r t rea tment only one day per week. Another l im i t a t i o n in t h i s i n v e s t i g a t i o n was the i n c o n s i s t e n t a t tendance by one s u b j e c t in the Video/verbal Feedback Group due to a d i s c i p l i n a r y s anc t ion p re sc r ib ed by the i n d i v i d u a l ' s group home counse lo rs . An add i t iona l l im i t a t i o n was the wide var iance o f a t t i t u d e s o f the s ub je c t s regard ing the jumping t a s k , as some enjoy­ ed the t r ea tmen t se s s ions whi le o the rs were d i sd a in fu l o f having to Repeatedly perform the s tand ing broad jump. These a t t i t u d e s may well have a f f e c t e d the s u b j e c t s ' r e cep t iveness toward the t r ea tmen t they were rece iv ing as well as t h e i r mot iva t ion in performing the standing broad jump. F in a l ly , d e sp i t e the p recau t ions taken in the grouping pro­ cedure , a pure ly homogeneous d i s t r i b u t i o n was impossible . 8Basic Assumptions For the purpose o f t h i s study i t was assumed t h a t the sub jec t s would not perform or p r a c t i c e the s tand ing broad jump any time o the r than during the t r ea tmen t s e s s i on s . I t was a l so assumed t h a t the sub jec t s would not d i scu ss t h e i r p a r t i c u l a r experimental t rea tmen t with o the r s ub je c t s . CHAPTER II REVIEW OF LITERATURE Learning has- been def ined as a s t a b l e change in performance as a r e s u l t o f p r a c t i c e (C r a t t y , 1968) and has been a major cons ide ra t ion o f educato rs and p sycho log is t s th roughout t h i s cen tury . In the e a r ly years o f i n v e s t i g a t i o n , ex tens ive exper imenta t ion with l abo ra to ry animals led r e s ea rche r s and t h e o r i s t s to conclude t h a t the l e a rn ing process was a s t imu lus - re sponse - re in fo rcemen t paradigm (Adams, 1971.) Despite the many d ive r s e l e a rn ing th e o r i e s t h a t soon emerged, t h i s i n t e r p r e t a t i o n t h a t lea rn ing was an open-loop process where re inforcement served to s t reng then the connection between a given s t imulus and the des i red response formed the b a s ic foundation f o r a l l the t h e o r i e s . In the l a s t twenty y e a r s , however, a t t e n t i o n has been concen tra ted on human lea rn ing processes and consequently more complex t h eo r i e s regard ing le a rn ing have emerged (Adams, 1971; Smith, 1968.) . These newer t h e o r i e s r e f u t e the no t ion t h a t l e a rn ing occurs as a r e s u l t o f pass ive responses to s t imu l i and view the l e a r n e r as a dynamic a c to r in the lea rn ing p rocess . Smith (.1968) was an advocate of a theory known as behavioral cybe rne t ic s which regarded lea rn ing as a c losed- loop process t h a t depended on sensory feedback generated by an i n d i v i d u a l ' s performance t h a t served to induce and d i r e c t subsequent performances. Adams (1971) supported t h i s c losed- loop theo ry , s t r e s s i n g t h a t e r r o r d e te c t io n and c o r r e c t i o n were keynote components 10 of human lea rn ing . He contended t h a t the c l a s s i c s t imulus - response i n t e r p r e t a t i o n s o f l e a rn ing emphasized an automat ic , non-congi t ive essence o f lea rn ing which f a i l e d to account f o r the f a c t t h a t human beings do not merely respond t o . s t im u l i and re in fo rcement , but a c t u a l l y improve performance by d e te c t in g and c o r r e c t in g e r r o r s made in move­ ment. Adams expla ined the shortcomings o f c l a s s i c l e a rn ing t h e o r i e s , s t a t i n g "The cogn i t ive domain i s the s t r i k i n g d i f f e r en c e between man and lower an imals , and i t i s hard to see the laws of human lea rn ing without i t . " (Adams, 1971: 115.) Thus, newer i n t e r p r e t a t i o n s o f the l e a rn ing p rocess , such as the c losed- loop theory supported by Smith (1968) and Adams (1971) seem to be more app l i c ab le to explanihg human l e a rn ing , and help provide groundwork on which to base i n v e s t ig a t i o n s of human motor l e a rn ing and performance. Motor Learning Like the sub je c t o f l e a r n in g , the to p ic o f motor l e a rn ing lends i t s e l f to a v a r i e t y o f i n t e r p r e t a t i o n s . Lockhart (1964) d iscussed the confusion o f ten genera ted by the use of d i f f e r e n t taxonomies to r e f e r to the. same phenomenon. 'Motor l e a r n i n g 1, 'psycho^motor l e a rn ing ,1 'perceptuo-motor l e a r n in g ' and 'neuro-muscula r l e a r n in g ' a l l r e f e r to the same t h in g , Lockhart r evea led , namely the process by which pa t te rned motion i s accomplished. Singer (1972: I ) helped c l a r i f y the concept of motor l e a rn ing by de f in ing i t as " . . . l e a r n i n g t h a t i s p r imar i ly 11 demonstrated through movement o r i en ted b ehav io r . . , 1 Alley (1968) proposed t h a t motor l e a rn ing depended on th re e i n t e r ­ r e l a t e d and in te rdependen t developmental s t ag e s . The ex is t ence of bas ic motor p a t t e rn s and s k i l l s c o n s t i t u t e d the f i r s t level and served as the foundation on which the o th e r two s tages were b u i l t . The subsequent l eve l s o f A l l e y ' s motor l e a rn ing model were an i n d i v i d u a l ' s perceptual o rg an iza t ion of the foundation s k i l l s and the a b i l i t y to concep tua l ize movement p a t t e r n s . Alley be l ieved t h i s f i n a l s tage o f c oncep tua l iz a t ion to be most c r i t i c a l in complex s k i l l a c q u i s i t i o n , C ra t ty (1968) d iscussed motor l e a rn ing as involv ing cons tan t adap ta t ion to demands p resen ted by a movement t a sk . This a d ap ta t i o n , he f e l t , r e s u l t e d from cogn i t iv e i n t e r p r e t a t i o n of sensory inpu t r e l a t i v e to the t a sk and depended p r im ar i ly on percep tua l p rocesses . The a b i l i t y to grasp an i n t e l l e c t u a l and conceptual unders tanding of a movement determined the degree to which an ind iv idua l s u c e s s f u l Iy mastered motor s k i l l s . Smith (1968) and Adams (.1971) both recognized the c r i t i c a l invo lve­ ment o f cogn i t ion in the motor l e a rn ing p rocess . An important c on s t ru c t in the c losed- loop theory which both Smith and Adams advocated was the ex is tence of an i n t e r n a l i z e d conception o f an optimal performance on which performers r e l i e d to d e te c t and c o r r e c t e r ro r s in a motor o u tp u t , In agreement with these views regard ing cogn i t ive involvement in motor l e a r n in g , Oxendine (1972) considered motor l e a rn ing to be a 12 thoughtful process t h a t requ i red i n t e l l e c t u a l as well as physical involvement. He s t r e s s e d the v i t a l importance o f concep tua l iz a t ion in s k i l l a c q u i s i t i o n , and f e l t e f f i c i e n t performance depended on ones ' a b i l i t y to form an in t e rn a l image o f a movement t a sk . C ra t ty (.1968) f e l t the perceptua l involvement in motor learn ing depended on informat ion rece ived by a performer regard ing a performance. He contended t h a t through t h i s informat ion a performer became aware of any e r r o r s in movement and was then able, to modify the next performance accord ing ly . C ra t ty summarized f ind ing s o f s tud ie s in the a rea o f informat ion feedback and i t s imp l ica t ion s to l e a r n in g , and concluded t h a t some form of feedback was e s s e n t i a l to motor l e a rn ing . Documentation o f the e f f e c t s of feedback on motor l e a rn ing and s k i l l a c q u i s i t i o n has in d ic a ted i t to be a c ru c ia l v a r i a b l e in the l e a rn ing process (Adams, 1971; C ra t ty 1968; Robb, 1968; S inge r , 1968; Smith, 1968.) Many concerned with motor l e a rn ing and human performance have i d e n t i f i e d feedback as one o f the c r i t i c a l f a c t o r s in s k i l l a c ­ q u i s i t i o n (Bilodeau and Bi lodeau, 1961; Knowles, 1973; Oxendine, 1972.) Adams (.1971; and Goetz, 1973) has been a major c o n t r i b u to r to feedback theory in r e c en t y e a r s . He be l ieved motor l e a rn ing was problem a t i c in n a tu re , a process which involved an i n i t i a l a t tempt a t s p e c i f i c movements, followed by i n t e g r a t i o n and i n t e r p r e t a t i o n o f feedback about the movements and a mod i f ica t ion of movements based on the feedback. In Adams' view of l e a r n in g , feedback provided e r r o r informat ion on which a performer based any a l t e r a t i o n in motor output during subsequent performances. This concept o f sys temat ic e r r o r process ing formed the crux of the c losed- loop l e a rn ing theory supported by Adams, who f i rmly maintained t h a t without some form of feedback on which to base the d e te c t ion and co r r e c t io n of movement e r r o r s , lea rn ing could not occur. The idea of feedback as a means o f providing e r r o r informat ion has been supported and s u b s t a n t i a t e d by o the rs working in the f i e l d of human movement performance. Robb (1968) d iscussed the viewpoint t h a t feedback provided informat ion necessary to make comparisons between a motor ou tpu t and a s tanda rd re fe rence . Oxendine (1972) and Knowles (1973) both mainta ined t h a t not only did feedback serve to provide e r ro r in fo rmat ion , but a l so helped to i d e n t i f y c o r r e c t and des i red motor ou tpu ts to a pe r fo rmer . Feedback has been d i s s e c t ed in to c a tego r ie s and labe led according to the manner in which in format ion i s a v a i l a b l e to a pe r fo rmer . Feed­ back can be i n t r i n s i c or e x t r i n s i c , with the l a t t e r comprised of v e r b a l , v i s u a l , t a c t i l e or aud i to ry inpu t (Knowles, 1973; Robb, 1968.) I n v e s t i g a t o r s have concerned themselves ex tens ive ly , with e x t r i n s i c feedback, studying va r ious modes and a dm in i s t r a t iv e opt ions to d e t e r ­ mine the techniques most conducive to motor l earn ing and s k i l l a c q u i s i ­ t ion . Visual cues seem to be the most i n f l u e n t i a l form of feedback in motor l e a rn ing (Adams, Gopher and L in te rn , 1977; Dwyer and Arnold, 14 1976; S inge r , 1968.) C ra t ty (1968) f e l t t h a t v i s ion provided the most va luable sensory inpu t to a performer because i t i n t e g r a t e d complex informat ion with l i t t l e d i s t o r t i o n , and the informat ion was unambiguous. In i n v e s t i g a t i n g v i sua l feedback , r e s ea rche r s have shown the methods of model demonstrat ion ( .Cra t ty , 1968; S inge r , 1968) and the use o f f i lm to rep lay performances (Neufeld and Neufeld, 1972; R o th s t e i n , 1980; S inge r , 1968) to be p a r t i c u l a r l y e f f e c t i v e in provid ing performers with informat ion va luab le to motor s k i l l a c q u i s i t i o n . These modes a re now being considered f o r use with ind iv idua l s who exper ience d i f f i c u l t i e s with motor s k i l l a c q u i s i t i o n , and the e f f e c t iv en e s s o f model demonstra­ t i o n and f i lm in teach ing motor s k i l l s to the r e t a rd ed i s an area of i n t e r e s t in p a r t i c u l a r ( C r a t t y , 1968; C a n t r e l l , 1977.) Motor Learning and the Mentally Retarded Although ex ten s ive re sea rch has been conducted in the a rea o f motor lea rn ing and s k i l l a c q u i s i t i o n , few s tu d i e s have d e a l t with these parameters and the men ta l ly r e t a rd ed . Because o f the l im i t ed empirical evidence, the ques t ion of why the developmentalIy d i sab led have d i f f i c u l t i e s master ing motor s k i l l s remains unanswered (C r a t t y , 1972; C ra t ty , 1980; Rar ick, 1973.) There has been c o n s i s t e n t documentation of motor d e f i c i e n c i e s in the menta lly r e t a rd ed (C ra t ty , 1980; Rar ick5 Widdop and Broadhead, 1970; Ross, 1969.) Ra r ick , Widdop and Broadhead (1970) i l l u s t r a t e d t h i s by 15 conducting a s tudy u t i l i z i n g the AAHPER Youth F i tnes s Tes t to ob ta in data on the degree to which re ta rded ado lescen ts performed below the e s t ab l i s h ed norms of the nonre ta rded popu la t ion . The components o f the t e s t were the s o f t b a l l throw, the th ree-hundred yard run/walk , the s tanding broad jump, the f i f t y yard dash , t h e . f l e x e d arm hang, the s h u t t l e run and s i tup s . In a s s e s s ing fou r thousand re t a rd ed ado le s ­ cents the au thors found t h e i r ove ra l l performance to be i n f e r i o r to e ig h ty - f i v e pe rcen t o f t h e i r nonre ta rded peer s . Explanat ion of the d e f i c i t s ev iden t in the motor performances o f the menta lly r e t a rd ed remains e l u s i v e , Rartck (1973) in d i c a t ed t h a t the lack o f unders tanding o f the neuromuscular mechanisms involved in the motor lea rn ing process pe rpe tua ted the i n a c c o u n t a b i l i t y f o r the menta lly r e t a r d e d ' s motor problems. C ra t ty (1980) agreed, contending t h a t because the e f f e c t s of pe r iphe ra l s t im u la t ion and o th e r sensory exper­ iences on- the nervous system were r e l a t i v e l y unknown, compounded by i n ­ d iv idua l d i f f e r en c e s in neuro log ica l and biochemical makeup, p in p o in t ­ ing s p e c i f i c causes f o r motor d e f i c i e n c i e s was d i f f i c u l t . I t i s apparen t the motor peoblems of the r e t a rd ed escape explan­ a t ion on a neuromuscular l e v e l . Specu la t ion , none th e l e s s , has been made on po s s ib le causes f o r the performance d e f i c i e n c i e s . Baumeis te r , .Hawkins and Holland (1966) f e l t the d i f f i c u l t i e s ex­ perienced by the r e t a rd ed in motor s k i l l a c q u i s i t i o n stemmed from an i n ­ a b i l i t y to i d e n t i f y and respond to c r i t i c a l feedback regard ing motor 16 performance. This i n e f f i c i e n c y in pe rce iv ing e r ro r s in performance r e s u l t e d in the absence o f a s tandard on which to base modif ica t ion of i n c o r r e c t movement p a t t e r n s . Morgan (1977) supported t h i s view, main ta in ing t h a t the menta lly re ta rded did not p r o f i t from feedback cues inhe ren t in a motor ta sk because they could not recognize e r r o r s in the movements. He a lso contended t h a t in o rde r f o r any feedback to be conducive to l e a rn ing , a performer must unders tand the importance of the informat ion provided. The re t a rd ed were most l i k e l y unable , Morgan f e l t , to grasp the r e l e ­ vance of most feedback cues regard ing a motor performance. C ra t ty (1974) be l ieved the developmenta lIy d i s a b l e d ^ a b i l i t y to lea rn motor s k i l l s was impeded by d i f f i c u l t i e s in the i n t e g r a t i o n of sensory in format ion , He sugges ted an i n a b i l i t y to process cues i n d ig ­ enous to a t a s k , o r feedback provided by ou ts ide s o u rc e s , hindered th e . ' development and mastery of motor s k i l l s by the r e t a rd ed . Alley (.1968) regarded perceptual c a p a b i l i t y to be a product of i n t e l l e c t u a l m a tu ra t ion , and f e l t the immature cogn i t iv e level of the menta lly r e ta rded l im i t ed t h e i r percep tua l p o t e n t i a l . One of A l l ey ' s s t a t e d p r e r e q u i s i t e s to motor l e a rn ing was the perceptual o rgan iza t ion of movement p a t t e r n s , and he suggested t h a t the r e t a r d e d ^ l im i ted perceptual c a p a b i l i t i e s accounted fo r t h e i r d i f f i c u l t i e s in motor learn ing and performance. Oxendine (1972) contended t h a t problems with s k i l l development 17 were a r e s u l t o f an i n d i v i d u a l ' s i n a b i l i t y to concep tua l ize a movement t a sk . He be l ieved e f f i c i e n t l e a rn e r s were ab le to qu ick ly grasp the concept o f a movement and those who had d i f f i c u l t y forming an a b s t r a c t image o f a motor p a t t e r n were a t a d i s t i n c t d isadvantage in motor l e a rn ing . Cra t ty (1974) suggested t h a t q u a l i t i e s such as i n a t t e n t i v e n e s s and d i s t r a c t a b i I i t y may account f o r some d i f f i c u l t i e s in informat ion pro­ cess ing by many menta l ly r e t a rd ed i n d iv id u a l s . He f u r t h e r specula ted t h a t t h e i r motor lea rn ing problems may be perpe tua ted by l e a rn ing in an i n s t r u c t i o n a l environment in which t r a d i t i o n a l t e chn iques , ch a rac te r iz ed by a perdominance of verbal c u e s , were the major modes of d e l iv e r ing feedback. Cra t ty be l ieved t h a t the r e t a rd ed were o f t en incapable of unders tanding ve rba l ized performance informat ion and t h a t they perhaps experienced problems in p rocess ing o th e r forms o f informat ion as well because o f t h e i r low .cogn i t ive c a p a b i l i t i e s . Despite the substandard motor p r o f i c i e n cy o f the developmentalIy d i s ab l ed , physical a c t i v i t y i s j u s t as impor tant f o r them as f o r th e nonre ta rded, Many p o s i t i v e e f f e c t s r e s u l t from f r equen t a c t i v i t y . Bene­ f i t s such as an inc rease in c a rd iova scu la r endurance, muscular s t r eng th and endurance and f l e x i b i l i t y as well as decreases in r e s t i n g blood p r e s ­ sure and r e s t i n g h e a r t r a t e have been c o n s i s t e n t l y repor ted (Astrand and Rodahl, 1977; Wilmore, 1976.) P a r t i c i p a t i o n in phys ical a c t i v i t y has a lso been shown to be a c r i t i c a l f a c t o r in weight r educ t ion and contro l i18 (Wilmore, 1976.) These p o s i t i v e e f f e c t s of phys ical a c t i v i t y play j u s t as v i t a l a ro le in the hea l th o f the menta l ly r e ta rded as f o r t h e i r nonre ta rded c oun te rp a r t s . In a dd i t io n to these b e n e f i t s , movement a c t i v i t i e s are important in the remedia t ion of many compounding handicapping condi­ t ions o f ten found in r e t a rd ed in d iv id u a l s , Cra t ty (1975) d iscussed the use o f trampoline a c t i v i t i e s to help develop leg and trunk s t r e n g th , improve abnormal g a i t p a t t e r n s and a id in e s t a b l i s h in g balance and coo rd ina t ion . S h e r r i l l (1977) c i t e d examples of a c t i v i t i e s b ene f ic ia l in the therapy of j o i n t c o n t r a c tu r e s , o b e s i t y , looseness of j o i n t s , muscular weakness, balance maladies and o th e r p hy s i c a l Iy handicapping cond i t ions t h a t o f ten e x i s t in developmentalIy d isab led persons. Can t re l l (1977) be l ieved t h a t p a r t i c i p a t i o n in r e c r e a t io n a l and l e i s u r e t ime a c t i v i t i e s helped round out the l i f e s t y l e o f the d i sab led . In r e a l i z i n g the problems faced by many re ta rded ind iv idua l s in l e a r n ­ ing and master ing motor s k i l l s , Can t re l l urged t h a t spec ia l e f f o r t s be made and techniques u t i l i z e d to teach them s k i l l s necessary f o r pa r ­ t i c i p a t i o n in physica l a c t i v i t i e s . C ra t ty (1968) regarded motor l e a rn ing in the re ta rded to be com­ parable to the motor development of ch i ld ren in the r e sp ec t t h a t deve l ­ opment could be enhanced by a v a r i e t y o f perceptuo-motor exper iences . These movement exper iences helped inc rease i n d iv id u a l s ' percep t ion of t h e i r bodies and t h e i r s p a t i a l r e l a t i o n s h i p to the environment, a 19 r e l a t i o n s h i p , C ra t ty main ta ined , t h a t played a c r i t i c a l r o l e in d e c i ­ sions made by performers regard ing motor ou tpu ts . In d i scuss ing physica l a c t i v i t y and the r e t a rd ed . Levy (1974) ou t l in ed a contemporary view t h a t motor s k i l l a c q u i s i t i o n served to help the menta l ly r e ta rded a d ju s t to vocat ional and l e i s u r e time s i t u a t i o n s by provid ing oppo r tu n i t i e s f o r fun and success fu l exper iences . Cra t ty (1980) supported t h i s id ea , sugges t ing t h a t success fu l movement exper­ iences con t r ibu ted to the s e l f esteem o f d isab led persons. I t i s apparen t , then , t h a t phys ica l a c t i v i t y i s important to the hea l th o f the developmenta ll y . d isab led no t only because phys io log ica l b en e f i t s acc rue , but a l so because a c t i v i t y appears to have some p o s i t i v e e f f e c t s on the p sy cho log i c a l , s oc ia l and emotional well being of the r e ta rded as we l l . More o f t en than no t , u n fo r tu n a t e ly , physical a c t i v i ­ t i e s conducive to e l i c i t i n g many of the b e n e f i t s , p a r t i c u l a r l y physio­ log ica l ones , r e qu i r e some degree o f motor p ro f i c i en cy . In l i g h t o f the g ene ra l ly substandard motor performance o f the menta l ly r e t a rd e d , techniques must be found and u t i l i z e d t h a t w i l l enhance motor lea rn ing and s k i l l development in the r e ta rded (C a n t r e l l , 1977.) Feedback and the Mentally Retarded Since feedback has been shown to be e s s e n t i a l to l e a r n in g , and i t i s proposed t h a t the menta l ly r e ta rded have d i f f i c u l t y i n t e r p r e t i n g a b s t r a c t forms of in fo rmat ion , i t becomes apparent t h a t modif ica t ion in 20 the p rov is ion of feedback is necessary in teaching the re ta rded . Some (Baumeister, Hawkins and Holland, 1966; Horgan, 1977) have suggested t h a t supplemental feedback, such as add i t iona l v isua l cues and physica l manipula tion o f the l e a r n e r , help the menta lly re ta rded to comprehend demands of a movement t a sk . Others (C r a t t y , 1974; C an t r e l l , 1977) contended t h a t methods o f provid ing more concre te types of feed­ back have a g re a t deal o f p o ten t i a l f o r use with the developmenta lIy d i sab led . Model demonst ra t ion and the u t i l i z a t i o n o f f i lm to i l l u ­ s t r a t e o r rep lay movement t a sks have been proposed as two v i ab le modes of p re sen t ing i n t e r p r e t a b l e informat ion conducive to motor s k i l l ac ­ q u i s i t i o n ( C r a t t y , 1968; S inge r , 1968.) Videotape i s one f i lm medium t h a t has been in v e s t ig a ted as a means of provid ing t a ng ib l e performance in format ion . Rothstein (.1980) com­ mented t h a t the impor tant r o l e t h a t v i s ion played in motor l e a rn ing , combined with the p opu la r i ty of t e l e v i s i o n , made videotape a p o t e n t i a l ­ ly va luab le i n s t r u c t i o n a l t o o l . C ra t ty (.1968) maintained t h a t i n f o r ­ mation d e l iv e red in the form of a v ideotape record ing was s t r a i g h t f o r ­ ward and unambiguous, and was a promising method o f p re sen t ing visual feedback to a performer . Ryan (1969) expla ined t h a t the b ene f i t s of al lowing people to view t h e i r own performances via v ideotape rep lay lay in the f a c t t h a t e r r o r s were e a s i l y recognizab le and mod if ica t ions were more r e a d i l y implemented as a r e s u l t . Neufeld and Neufeld (1972) f e l t t h a t v ideotape record ings were va luab le in t h a t they helped ind iv idua ls I21 form a c l e a r p i c t u r e o f the elements requ i red to perform a movement task c o r r e c t l y . Others ( DeRoo and Hara lson, 1971; Morgan, 1971; Penman, 1969; Schweide r , 1977; Wadsworth, 1973) have surmised t h a t v ideotape record ings provided concise and i n t e r p r e t a b l e feedback r e ­ garding performance. Un fo r tuna te ly , v ideotape i s not a panacea in the area of motor lea rn ing and s k i l l a c q u i s i t i o n . I n v e s t ig a to r s have found t h a t the value of the in format ion a v a i l a b l e to a I e a rner in a record ing of the i n d i v i ­ d u a l ' s performance was con t ingen t on a number of f a c t o r s . Rothste in and Arnold (1976) analyzed f i f t y - tw o re sea rch s tud ie s concerned with the use o f v ideotape as a tool in teaching motor s k i l l s . The parameters considered by Roths te in and Arnold were age, sex and s k i l l level o f the s u b j e c t s ; the ta sk being performed by the sub je c t s ; the t rea tmen t con­ d i t i o n s ; and the leng th or number of adm in is t r a t ion s o f the t re a tmen t . The r e s u l t s of t h e i r a n a ly s i s were t h a t advanced beginners and more highly s k i l l e d performers b e n e f i t t e d more from exposure to videotape replays than did beg inners . The au thors a l so found t h a t r e p e t e t i v e rep lay o f v ideotape reco rd ings was necessary f o r s i g n i f i c a n t improve­ ments in performance to occur and t h a t cues to d i r e c t a l e a r n e r ' s a t ­ t en t ion to s p e c i f i c a spec t s o f the recorded performances were e s s e n t i a l to enhace l e a rn ing and performance. Morgan (19-71) cons idered videotape to a very promising way to provide v isua l c u e s . She d id , however, recognize the l im i t a t i o n s 22 of i t s a p p l i c a b i l i t y to motor lea rn ing and s k i l l a c q u i s i t i o n , Morgan ind ica ted t h a t beginners did not b e n e f i t from viewing a videotape record ing o f t h e i r performances, and con jec tu red t h a t beginners did not have enough of an e s t a b l i s h e d concept of the p re sc r ibed movement ta sk to app rec ia te the e r r o r informat ion provided by the rep lay . DelRey (1971) d iscussed the predominance of s tu d ie s which showed t h a t the u t i l i z a t i o n o f v ideotape record ings had l i t t l e e f f e c t on motor s k i l l development. She r evea led , however, t h a t none o f the s tud ie s included d i r e c t i n g a l e a r n e r ' s a t t e n t i o n to s p e c i f i c r e l e v an t aspec ts of the replayed performances. DelRey s t r o ng ly suggested t h a t by focus ­ ing on c e r t a i n f a c to r s whi le viewing a recorded performance, a l e a r n e r could b e t t e r recognize and i n t e r p r e t c r i t i c a l informat ion . I t would appear t h a t i t i s the manner in which v ideotape record ings a re incorpora ted i n to a l e a rn ing s i t u a t i o n t h a t determines i t s e f f e c t i v e ­ ness . As Rothste in (1980: 60) concluded, " Videotape rep lay has the . p o ten t i a l to enhance the l e a rn ing and performance o f motor s k i l l s provided the c r i t i c a l f a c t o r s guiding i t s e f f e c t i v e use a re adhered to by teachers and coaches." Despite the numerous s tu d ie s i n v e s t i g a t i n g the e f f e c t s of videotape rep lay on l e a rn ing , re sea rch concerning i t s use with the handicapped remains so re ly l ack ing . The few who have examined v id eo tap e ' s value in dealing with except iona l ind iv idua l s have p r imar i ly in v e s t ig a t e d i t as a po te n t i a l a id in modifying maladaptive and unde r s i r ab le behaviors 23 (DeRoo and Hara lson, 1971; Nelson, Gibson and Cu t t ing , 1973; Schweider, 1977; Weisbord, 1976.) The s c a r c i t y o f evidence regard ing e f f e c t s of the use o f v ideotape record ings on. movement p a t t e r n s and motor s k i l l development by the menta l ly r e ta rded l im i t s the progress toward determining and implementing techniques t h a t w i l l enhance t h e i r motor lea rn ing and performance. I t i s impera t ive t h a t p rog res s ive i n s t r u c t i o n a I approaches, be more thoroughly in v e s t ig a t e d i f the problem of motor d e f i c i en c i e s in the menta l ly r e ta rded i s ever to be e f f e c t i v e l y d e a l t with (C a n t r e l l , 1977.) Summary I t has been shown t h a t feedback plays a c r i t i c a l ro l e in motor l e a rn ing , and t h a t perceptual p rocesses involved with i n t e r p r e t i n g feedback a re important to s k i l l a c q u i s i t i o n . I t has been specula ted t h a t the i n a b i l i t y to pe rce ive and i n t e r p r e t e r r o r in format ion may be a major f a c t o r underly ing the motor d e f i c i e n c i e s o f the menta lly re ta rded . Since physica l a c t i v i t y i s impor tan t to the well being of the r e t a rd ed , i t becomes necessary to provide them with feedback t h a t allows f o r motor l e a rn ing d e sp i t e t h e i r cogn i t iv e and perceptual l im i t a t i o n s . Videotape record ings may be one way to p re sen t concrete in format ion t h a t may be r e a d i l y i n t e r p r e t e d and processed by the developmentalIy d i s ab led . CHAPTER I I I METHODOLOGY The purpose o f t h i s s tudy was to i n v e s t i g a t e the e f f e c t s of v ideo­ tape rep lay on the s tanding broad jump performances of s ix te en menta lly re ta rded a d u l t s . The method in which t h i s was accomplished wil l be presented in the fo llowing o rder : ( I ) Sub je c t s ; (2) schedule ; (3) i n ­ s t rumen ta t ion ; (4) assessment p rocedures ; (5) t rea tmen t procedures ; and (6) an a ly s i s of da ta . Subjects The sub jec t s in t h i s s tudy were ten male and s ix female mildly and moderately menta l ly r e t a rd ed a du l t s who were p a r t i c i p a n t s in a weekly r e c r e a t io n program f o r excep t iona l ind iv idua l s a t Montana S ta t e Un ive r s i ty , Bozeman, Montana, F i f te en of the sub jec t s l ived in group homes adm in is t ra ted by Reach I n c . , a n onp ro f i t o rgan iza t ion t h a t provides community s e rv ic e s to the developmenta lIy d isab led adu l t s of Bozeman. One sub je c t l ived semi- independent ly in Bozeman. The sub jec t s ranged in age from n ine teen to f o r t y years of age. None of the sub jec t s had any or thoped ic impairments or o the r phy s ic a l Iy handicapping condi t ions t h a t would have i n h ib i t e d t h e i r performing the s tanding broad jump. All sub jec t s s igned a consent form p r i o r to the i n i t i a t i o n of t h i s s tudy. (See Appendix A.) The sub jec t s were d ivided in to th r e e g roups , One group was the 25 Control Group, the second group was the Verbal Feedback Group and the t h i r d group was the Video/verbal Feedback Group. There was a wide range of e x i s t i n g leve l s o f motor p ro f i c i ency w i th in the popu la t ion , so the following procedures were u t i l i z e d in the grouping process to help a t t a i n homogeneity between the t h r e e t r ea tmen t groups; The s ub je c t s were l i s t e d in rank o rder according to the scores from t h e i r i n i t i a l assessments . This rank o rde r was then s t r a t i f i e d with th r e e sub jec t s per s t ra tum. The th ree sub jec t s in each s t ra tum were then randomly ass igned to one o f the th ree t r ea tmen t groups in o rder to ensure an even d i s t r i b u t i o n . according to the s u b j e c t s 1 jumping prof ic iency ,(Morgan, 1977.) The means of the i n i t i a l and f i n a l p r o f i l e scores f o r each group a re p resen ted in Table I . , and r e f l e c t a r e l a t i v e l y homogeneous d i s t r i b u t i o n of the sub jec ts based on t h e i r i n i t i a l p ro f i c i ency a t performing the s tand ing broad jump. Schedule This s tudy was conducted in the Physical Education Curriculum Lab a t Montana S t a t e Un ive r s i ty , Bozeman, Montana, The da ta f o r t h i s study were c o l l e c t e d on April 10, 1980 and June 5, 1980. The experimental t rea tmen t was admin is tered on Thursday evenings between 6:00 p.m. and 8:00 p.m. beginning April 17, 1980 and concluding May 19, 1980. T rea t ­ ment was not admin is te red on Thursday, May .15, 1980 because some of the sub jec t s were p a r t i c i p a t i n g in the Montana Special Olympics in Missoula, 26 Table I . Means and Standard Devia tions o f the I n i t i a l and Final P r o f i l e Scores of Each Group, t-Values and P robab i l i ty of the I n t r a ­ group Comparisons o f the I n i t i a l and Final Performance. Control (N=5) Verbal (N=6) Video/verbal X SD X SD X SD INITIAL 4.67 1.21 4.60 1.14 4.60 1.52 FINAL 5.17 2.32 4.20 1.09 4.80 1.64 t - v a l ue - .89 1.63 - .53 PROB .42 .18 .62 * S ign i f i c ance was t e s t e d a t the .05 l e v e l , tg = 2.57; p< .05 Table 2. Means and Standard Deviations o f the I n i t i a l and Final Dis­ tance Measurements of Each Group, t-Values and P robab i l i t y of the In t ragroup Comparisons o f the I n i t i a l and Final Pe r f ­ ormance. Control (N=5) Verbal LOIl Z Video/verbal X SD X SD X SD INITIAL 26.70 8.63 27.04 11.76 32.76 17.30 FINAL 27.60 10.85 30.06 17.89 33.42 18.44 t - v a l ue - .30 - .96 - .22 PROB .77 .39 .84 * S ign i f ic ance was t e s t ed a t the .05 l e v e l , t^ = 2 .57; p<.05 27 Montana. Ins t rumenta t ion The s tanding broad jump i s u t i l i z e d in numerous f i t n e s s t e s t b a t t e r i e s as a t e s t of leg s t r e ng th and power. I t has a v a l i d i t y co- e f f e c i e n t g r e a t e r than .90 and a r epo r ted r e l i a b i l i t y o f .97 (Matthews, 1973.) The procedures f o r adm in is te r ing and performing the standing broad jump were those desc r ibed in the MHPER Special F i tnes s Manual fo r Mildly Mentally Retarded Persons (MHPER, 1976: 18.) These pro­ cedures are p resen ted in Appendix B. The s tanding broad jump was chosen as the movement ta sk in t h i s study because i t was a r e l a t i v e l y uncomplicated ta sk which the sub jec t s would be ab le to perform with some degree o f s u c c e s s . Another concern in the s e l e c t i o n o f the s tanding broad jump f o r use in t h i s study was - t h a t a l l o f the s ub je c t s were known to have immature jumping p a t t e r n s , and hence th e re was p o te n t i a l f o r improvement in a l l the s u b j e c t s ' jumping p ro f i c i ency during t h i s i n v e s t i g a t i o n . The ins t ruments used in t h i s s tudy to f i lm and rep lay the s u b j e c t s ' s tanding broad jump performances were a Sony 3/4 inch Videocamera, model AVC-3260, and a Sony V ideocasse t te r e c o rd e r , model V0-2600. The rep lay of the videotape record ings was viewed on a Sony T r i n i t r o n Color Receiver /Moni tor, model CVM-1250, This study was mainly concerned with the q u a l i t y of jumping pe r ­ 28 formance, but i t a l s o considered measurements o f q u a n t i t a t i v e ach ieve ­ ment. The o b je c t iv e q u a n t i t a t i v e measurement con s i s ted o f record ing the d i s tance jumped in each o f the f i v e t r i a l s in both the i n i t i a l and f in a l assessment s e s s i o n s . The mean d i s t a n ce from each s e s s ion c o n s t i ­ tu ted the eva lua t ion c r i t e r i o n of q u a n t i t a t i v e performance. The q u a l i t a t i v e a spec t of the sub je c t s - performances was evalua ted s u b je c t iv e ly through use o f an assessment tool developed by McClehaghan and Gallahue (McClenaghan and Gallahue, 1978: 104.) The tool i s p r e ­ sented in Appendix B, This tool i s comprised o f l i s t s o f performance t r a i t s commonly occur ing a t var ious s tages in the development of a mature jumping p a t t e r n . I t was designed f o r use in a s s e s s ing the de­ velopment o f c h i l d r e n ’s jumping p a t t e rn s and was app l i c ab l e to the popula tion of t h i s s tudy as a l l o f the sub jec t s performed the s tanding broad jump a t some po in t below the mature level on the developmental s c a le . This i n v e s t i g a t o r assumed the tool to have face v a l i d i t y as o the r sources from the f i e l d of motor development have s u b s t a n t i a t e d McClehaghan and Ga l lahue ’s breakdown and d e s c r i p t i o n s o f the develop­ mental s tages in jumping by revea l ing c h a r a c t e r i s t i c s common to the various performance l e v e l s (Corbin, 1980; Wickstrom, 1977.) Assessment Procedures An i n i t i a l , ev a lu a t ion of each s u b j e c t ’s jumping p a t t e r n was,conduct ed on April 10, 1980 and a f i n a l eva lua t ion of the p a t t e r n of each 29 sub jec t was done on June 5, 1980. The assessment procedures cons is ted of each sub je c t performing f iv e consecu t ive s tanding broad jumps a f t e r rece iv ing the fo llowing s tanda rd ized verbal i n s t r u c t i o n s from the inves ­ t i g a t o r : "When I ask you to jump, I want you to jump as f a r as you can. Keep your f e e t tog e th e r the whole t ime. Put your toes on the white l i n e . Ready? Jump." The i n i t i a l f i v e and f i n a l f i v e performances of each sub je c t were recorded on v ideotape to ensure an accu ra te q u a l i t a ­ t i v e assessment by a llowing the a s s e s so r s to view the performances r e ­ peated ly . (See Appendix B f o r an exp lana t ion of the scor ing p rocedures . ) The i n v e s t i g a t o r c o l l e c t e d the q u a n t i t a t i v e da ta by measuring and recording the d i s t a n ce s of each jump. Two female a s s i s t a n t s conducted the q u a l i t a t i v e assessment. Both a s s i s t a n t s had background in the area of fundamental motor p a t t e r n s through t h e i r exper iences as phys ical ed­ uca to r s . Both had been employed as g radua te teaching a s s i t a n t s of elem­ en ta ry physica l educa t ion by Montana S t a t e Un ive r s i ty , Bozeman, Montana, and taugh t physica l educa t ion in the Bozeman Public School D i s t r i c t fo r one y ea r . Each a lso had one yearns exper ience working with the handi­ capped in. the Bozeman pub l ic schoo ls , c oncen t ra t ing on the development of fundamental movement p a t t e r n s and motor s k i l l s with menta l ly r e ­ ta rded c h i ld ren . Through t h e i r exper iences working with handicapped and nonhandicapped c h i l d r e n , both a s s i s t a n t s became very f am i l i a r with the c h a r a c t e r i s t i c s o f the developmental s tages in jumping. The a s s i s t a n t s were t r a in ed in use o f the assessment tool by the 30 i n v e s t i g a t o r . A r e l i a b i l i t y c o e f f i c i e n t o f 1.0 was e s t a b l i s h e d f o r the a s s i s t a n t s through a p i l o t study conducted between January 22, 1980 and February 5, 1980. The a s s i s t a n t s made an i n i t i a l assessment o f the p i l o t study sub jec t s and conducted ano ther assessment of the sub jec t s two weeks l a t e r . The sub jec t s o f the p i l o t s tudy were seven mild ly and moderately menta lly re ta rded male and female high school s tuden ts a t t end ing Bozeman Senior High School, Bozeman, Montana. In add i t io n to e s t a b l i s h ­ ing the r e l i a b i l i t y o f the a s s i s t a n t s in use o f the assessment t o o l , another purpose o f the p i l o t study was to determine the c l a r i t y of the s tandard ized verbal i n s t r u c t i o n s and verbal feedback cues to menta lly re ta rded in d iv id u a l s . The p i l o t study f u r t h e r e s t a b l i s h ed a s tandard procedure f o r the d e l iv e ry o f feedback and allowed the i n v e s t i g a t o r and the a s s i s t a n t s to become f am i l i a r with u s in g . th e video equipment and the assessment tool used in t h i s s tudy. Treatment Procedures The experimental t r e a tmen t was admin is te red to the sub jec t s on an ind iv idua l b a s i s . The p re sc r ibed t r ea tmen ts f o r the groups were: Control Group: Each of the f i v e sub je c t s in the Control Group was given the s tanda rd ized i n s t r u c t i o n s p r i o r to the f i r s t s tanding broad jump performance in each t r e a tmen t s e s s ion . Each sub jec t then performed ten consecu t ive jumps and received no feedback what­ soever on how to improve the jumping p a t t e r n . Following every jump, 31 the i n v e s t i g a t o r s a i d , "Nice job. P lease jump aga in . " No o the r communication took p lace between gny sub je c t and the i n v e s t i g a t o r during the t r e a tmen t s e s s ions . Verbal Feedback Group: Each of the s ix sub je c t s in the Verbal Feedback Group was given the s tandardized, i n s t r u c t i o n s p r i o r to the f i r s t s tand ing broad jump performance in each t r ea tmen t s e s s ion . Each sub je c t performed ten jumps per s e s s ion . A f te r each jump, a s ub je c t rece ived s tanda rd ized verbal cues (see Appendix C) from the i n v e s t i g a t o r t h a t were app rop r i a t e f o r a spec t s of the p e r f o r ­ mance t h a t needed improvement. Following the a dm in i s t r a t io n o f the verbal feedback cues , the i n v e s t i g a t o r s a i d , "Nice job . P lease jump aga in ." No v i sua l cues were given any to any of the s u b j e c t s , and no communication o th e r than the s tanda rd ized i n s t r u c t i o n s , s tandard ized verbal cues and the r eque s t to r e p e a t the jumping ta sk took place during the t rea tmen t s e s s ion s . Video/verbal Feedback Group: Each o f the f i v e sub je c t s in the Video/ verbal Group was given the s tanda rd ized i n s t r u c t i o n s p r i o r to the f i r s t s tanding broad jump performance in each t rea tmen t s e s s ion . Each sub je c t performed ten jumps per s e s s ion . Before the f i r s t jump, each sub je c t viewed a v ideotape record ing of a model perform­ ing a mature s tand ing broad jump p a t t e r n . The s u b je c t then p e r ­ formed th re e consecu t ive jumps which were recorded on v ideo tape . Following the t h r e e jumps, the v ideotape record ing was replayed to 32 the sub je c t whi le the i n v e s t i g a to r provided s tanda rd ized verbal feedback cues t h a t were app rop r ia te f o r apsec ts o f the performances t h a t needed mod i f ica t ion . A f te r the adm in i s t r a t io n of the feedback, the i n v e s t i g a t o r s a i d , "Nice job . P lease jump th re e more t imes ." This procedure o f admin is te r ing feedback following th re e jumps was was done th r e e t imes . J u s t p r i o r to the t en th and f i n a l jump of each s e s s i o n , the sub je c t again viewed the model performance. No verbal or v isua l cues o the r than the s tanda rd ized i n s t r u c t i o n s , s tanda rd ized verbal feedback cues and the v ideo tape rep lays were provided. . The s tanda rd ized verbal feedback cues (see Appendix C) were develop­ ed by the i n v e s t i g a t o r based on WickstromtS (1977) d e s c r i p t i o n of the components o f a mature jumping p a t t e r n . Wickstrom syn thes ized numerous sources of informat ion regard ing performance c h a r a c t e r i s t i c s of an e f ­ f i c i e n t l y executed s tand ing broad jump, and found the fo llowing f a c to r s to be c ru c ia l to optimal performance: 1. The deeper the crouch, given t h a t the leg f l e x io n was not extreme, the g r e a t e r the d i s t a nce t h a t could be covered. 2. The arms helped f a c i l i t a t e and enhance the jump by serv ing to s h i f t . a jumper 's weight when the arms were f i r s t swung behind the body, then swung v igorous ly forward to a hyperextended po s i t ion above the head. The arms a lso helped main ta in the the momentum of the body in f l i g h t by remaining hyperextended 33 with the elbows s t r a i g h t . 3. The optimal t a k eo f f angle was approximately f o r t y - f i v e degrees . 4. The heels were pu l led o f f the f l o o r and the jump was i n i t i a t e d from the t o e s , followed in success ion by the ex tens ion of the h ip s , then the knees and then the a n k l e s . 5. The ex tens ion of the lower ex t remet ies was done r a p id ly to f a c i l i t a t e the jump. The knees and hips f lexed soon a f t e r t a k e o f f , and the knees extended again to p o s i t i o n the f e e t in f r o n t o f the body in p repa ra t ion f o r land ing . The knees and hips f lexed upon con tac t with the landing su r f a ce to absorb the impact o f the landing and . to help d e c e l e r a t e the body smoothly. The verbal feedback cues were developed with these performance f a c to r s in mind. The cues were a lso worded simply in o rde r to help p re sen t the feedback informat ion as c l e a r l y and unders tandably as po s s ib le to the men ta l ly r e ta rd ed s u b je c t s . The procedure o f r ep lay ing the v ideotape reco rd ings to the sub jec t s was e s t ab l i s h ed by the i n v e s t i g a t o r based on C r a t t y t S (1968) ideas regard ing the most e f f e c t i v e way to p re sen t v isua l feedback by means of videotape rep lay . C ra t ty f e l t t h a t when l e a rn e r s viewed a model as well as t h e i r own performances , they had a c l e a r s tandard of re fe rence on which to base c o r r e c t io n s in t h e i r movements. He a l so contended t h a t lea rn ing was enhanced when p r a c t i c e c lo s e ly followed viewing of e i t h e r a model o r . a I e a r n e r ' s own performance on a v ideotape record ing . 34 With C r a t t y ' s viewpoints in c on s id e ra t i o n , the i n v e s t i g a t o r de s ign ­ ed the v ideotape feedback t r ea tmen t procedure to al low the s ub je c t s to view a model performance o f the s tanding broad jump as well as t h e i r own performances , and to provide an oppor tun i ty f o r p r a c t i c e immediately following the rep lay o f the performances . Each s u b j e c t in the Video/ verbal Feedback Group rece ived the v ideotape feedback t rea tmen t as fo llows: (a) View model performance; (b) perform th r e e jumps; (c) view replay of the th r e e jumps; (d) perform th re e more jumps; (e) view rep lay of the second s e t of t h r e e jumps; ( f ) perform th r e e more jumps; (g) view replay of the t h i r d s e t o f th r e e jumps; (h) review model performance; and ( i ) perform the t e n th and f i n a l jump. Analysis of Data All o f the da ta c o l l e c t e d were analyzed by the Sigma Seven Com­ pu te r loca ted in the Computing Center a t Montana S t a t e Un ive r s i ty , Bozeman, Montana. The hypotheses were t e s t e d using the fo l lowing SPSS programs: t - t e s t— a subprogram used to t e s t the s i g n i f i c a n c e of the d i f f e r ­ ence between a p re t rea tmen t and a po s t t r e a tmen t measurement of a v a r i a b l e wi th in one group, ONEWAY ana ly s i s o f v a r i a n c e - - a subprogram used to t e s t the s i g n i ­ f ic ance of the d i f f e r en c e between two or more groups when one v a r i a b l e i s being considered . 35 Desc r ip t ive s t a t i s t i c s were computed f o r a l l raw scores obta ined in a sse ss ing the s u b j e c t s . The s t a t i s t i c s were then sub jec ted to t e s t s of s ign i f i c a n ce using the SPSS program desc r ibed . Both hypotheses were t e s t ed a t the .05 level of s ig n i f i c a n c e . Hypothesis I was t e s t e d by sub jec t ing the da ta from the f i n a l p e r ­ formance assessment to a t e s t of s ig n i f i c a n c e t h a t would reveal the d i f f e r en c e between the t h r e e t rea tmen t groups * performance o f the s t and ­ ing broad jump fo l lowing the experimental t r e a tm en t .p e r io d . Hypothesis 2 was t e s t e d by s u b je c t ing the da ta from the i n t i a l performance eva lua­ t ion and the f i n a l performance eva lua t ion to a t e s t of s i g n i f i c a n c e t h a t would reveal the d i f f e r e n c e between each g roup 's i n i t i a l performance and f in a l performance o f the s tanding broad jump. CHAPTER IV RESULTS The purpose o f t h i s study was to i n v e s t i g a t e the e f f e c t s of video­ tape feedback on the s tand ing broad jump performances o f r e ta rd ed a du l t s . A s u b j e c t i v e eva lua t ion o f the s u b j e c t s 1 jumping p a t t e r n s and and o b je c t iv e measurement o f the d i s t a n ce s jumped preceeded and suc­ ceeded the a dm in i s t r a t io n o f the exper imental t r e a tmen t . The assessment scores were s t a t i s t i c a l l y analyzed and the fo llowing comparisons were made: ( I ) a comparison of the f i n a l performances o f a l l t h r e e ex­ perimental groups; and (2) a comparison of the i n i t i a l and f i n a l performances o f each group. The r e s u l t s a re p resen ted in the following order : ( I ) d e s c r i p t i v e s t a t i s t i c s ; and (2) hypotheses t e s t i n g . Desc r ip t ive S t a t i s t i c s The means and s tandard dev ia t ion s o f the i n i t i a l and f i n a l perform­ ance p r o f i l e s co res f o r each group a re p re sen ted in Table I . The means and s tandard d ev ia t i o n s o f the i n i t i a l and f i n a l d i s t a n ce measurements f o r each group a re p resen ted in Table 2. Hypotheses Tes ting Two hypotheses were t e s t e d . i n t h i s s tudy . The r e s u l t s w i l l be presented fo r each hypothesis in the fo llowing manner: . (a) s ta tement of hypothes is ; (b) d e s c r ip t i o n and i n t e r p r e t a t i o n o f the method of s t a t i s t i c a l a n a l y s i s ; (c) r e s u l t s of the s t a t i s t i c a l a n a ly s i s ; and (d) behavioral i n t e r p r e t a t i o n o f the t e s t s t a t i s t i c . HYPOTHESIS I There w i l l be no s i g n i f i c a n t d i f f e r en c e (p < .05) in the perfom- ance o f the s tand ing broad jump between the Control Group, the Verbal Feedback Group and the Video/verbal Feedback.Group fo llow­ ing a dm in i s t r a t io n o f the experimental t rea tmen t . This hypothes is was t e s t e d by sub jec t ing the raw data to a ONEWAY ana ly s i s o f v a r i ance . The s t a t i s t i c a l an a ly s i s u s ing .a ONEWAY analy­ s i s of va r iance revea led the d i f f e r en ce s between the f i n a l s tanding broad jump performances o f the th ree groups. An F-probabiI i t y g r e a t e r than .05 would r e s u l t in acceptance o f the null h ypo the s i s , with the subsequent conclus ion being t h a t no s i g n i f i c a n t d i f f e r en c e in the . s u b j e c t s ' performance o f the s tanding broad jump occurred as a r e s u l t of the verbal o r v ideo /ve rba l feedback t rea tmen t . The r e s u l t s o f th e ONEWAY ana ly s i s o f va r iance between the p r o f i l e scores o f the t h r e e groups a re presented in Table 3. The r e s u l t s of the ONEWAY an a ly s i s o f va r iance between the d i s t ance measurements of. the t h r e e groups a re provided in Table 4. No s i g n i f i c a n t d i f f e r en c e between the f i n a l performance p r o f i l e s or the f i n a l performance d i s ­ tance measurements was found. The null hypothesis was accep ted , ; and i t was concluded t h a t the adm in i s t r a t io n o f the verbal f e ed - 38 Table 3. Degrees of Freedom, Sum o f Squa re s , Mean Squares , F-Ratio and P r o b ab i l i t y of the In te rgroup Comparison of the Final Performance P r o f i l e Scores of Each Group. SOURCE DF SS MS F PROB Between Groups 2 2.566 1.238 .393 .683 Within Groups 13 42.434 3.264 Total 15 45.000 * S ign i f ic ance was t e s t e d a t the .05 l e v e l . f 2,13 = 3,80; p< ,05 Table 4. Degrees of Freedom, Sum o f Squares , Mean Squares , F-Ratio and P r o b ab i l i t y of the In te rg roup Comparison of the Final Performance Distance Measurements of Each Group. SOURCE DF SS MS F PROB Between Groups 2 92.500 46,250 .186 .832 Within Groups 13 3228.855 248.373 Total 15 3321.355 * S ign i f ic ance was t e s t e d a t the .05 l e v e l . f 2,13 = 3.80; p <05 39 back had no s i g n i f i c a n t e f f e c t on the s t and ing .b road jump performances o f the mild ly and moderately menta lly r e t a rd ed a d u l t s u b je c t s . HYPOTHESIS 2 There wi l l be no s i g n i f i c a n t d i f f e r e n c e (p < .05) between the i n i t i a l and f i n a l performances o f the s tand ing broad jump in any o f the t h r e e groups. This hypothesis was t e s t e d by s u b je c t ing the raw data to a Paired t - t e s t . The s t a t i s t i c a l an a ly s i s using a Paired t - t e s t revealed the d i f f e r en ce s between the i n i t i a l and f i n a l s tand ing broad jump perform­ ances of each group. A t - p ro b ab j I i t y g r e a t e r than .05 would r e s u l t in acceptance of the null hypo thes i s , with the subsequent conclusion being t h a t no s i g n i f i c a n t d i f f e r en c e in any of the groups ' s tand ing broad jump performances occurred as a r e s u l t o f t h e i r r e s p ec t iv e experimental t rea tmen t . The r e s u l t s o f the Paired t - t e s t between the i n i t i a l and f in a l mean p r o f i l e scores a re p re sen ted f o r each group in Table I , The r e s u l t s o f the Paired t - t e s t be tween.the i n i t i a l and f i n a l mean d i s tance measure­ ments a re given f o r each group in Table 2. No s i g n i f i c a n t d i f f e r ence between the i n i t i a l mean p r o f i l e score and the f i n a l performance mean p r o f i l e score was found in any of the groups. No s i g n i f i c a n t d i f f e r ence between the i n i t i a l performance mean d i s t a n ce measurement and the f ina l performance mean d i s t a n ce measurement was found in any of the groups. 40 The null hypothesis was accepted , and i t was concluded t h a t the absence of feedback, the adm in i s t r a t io n of verbal feedback and the adm in is t r a ­ t ion o f v ideo /verba l feedback had no s i g n i f i c a n t e f f e c t s on the s tand­ ing broad jump performances o f the mild ly and modera tely menta lly re ta rded su b je c t s . CHAPTER V DISCUSSION OF RESULTS The purpose o f t h i s study was to examine the e f f e c t s o f videotape feedback on the s tand ing broad jump performances of m i ld ly and mod­ e r a t e l y menta lly r e t a rd ed a du l t s . Videotape feedback was presented by rep lay ing v ideotape record ings of sub jec ts^ performances while provid­ ing verbal cues concu r ren t ly . D ifferences Between the Final Performances o f the Three Groups . Result s of the ONEWAY ana ly s i s o f va r iance revea led no s i g n i f i c a n t d i f f e r en c e between the mean p r o f i l e scores of the f i n a l performances of the Control Group, the Verbal Feedback Group and the Video/verbal Feedback Group. I t vtas hypothesized t h a t no s i g n i f i c a n t d i f f e r en c e between the t h r e e groups would be found fo llowing the completion of the experimental t r e a tmen t . Result s o f the ONEWAY ana ly s i s o f va r iance revea led no s i g n i f i c a n t d i f f e r en ce between the mean d i s t ance measurements from the f i n a l pe r ­ formances of the Control Group, the Verbal Feedback Group and the Video/verbal Feedback Group. I t was hypothesized t h a t ho s i g n i f i c a n t d i f f e r en c e between the th r e e groups would be found following the com­ p le t ion of the experimental t rea tmen t . 42 Differences Between the I n i t i a l and Final Performances o f Each Group The r e s u l t s of the t - t e s t revea led no s i g n i f i c a n t d i f f e r en c e between the i n t i a l mean p r o f i l e score and the f i n a l mean p r o f i l e score in any o f the th r e e g roups . The r e s u l t s a lso revealed t h a t no s i g n i f i c a n t d i f f e r en c e ex i s t ed between "the i n i t i a l mean d i s tance measurement and the f i n a l mean d i s t a n ce measurement in any o f the th ree groups . I t was hypothesized t h a t no s i g n i f i c a n t d i f f e r en c e would be found as a r e s u l t o f any of the experimental cond i t ions . The r e s u l t s of t h i s study revea led t h a t e x t r i n s i c verbal and v i s ­ ual cues did not p o s i t i v e l y e f f e c t the motor learn ing of the s ub je c t s . Knowles (1973) found s im i l a r r e s u l t s when she inve s t ig a ted the e f f e c t s of e x t r i n s i c feedback on the l e a rn ing o r two gross motor s k i l l s by moderately and mild ly men ta l ly r e ta rd ed males. She d iscovered t h a t providing feedback regard ing the outcome of a performance following completion o f the performance y ie lded no s i g n i f i c a n t b e n e f i t s . In Knowles' s tudy , the s ub je c t s in one t r ea tmen t group were informed of the r e s u l t s of t h e i r performances in terms of numerical scores in ad­ d i t i o n to r e ce iv ing verbal cues oh how to improve the q u a l i t y o f the performance. ' Sub jec ts in ano ther group received only, verbal cues r e ­ garding how to improve t h e i r movements while sub jec ts in a t h i r d group received no feedback whatsoever . The r e s u l t s of Knowles' study revealed t h a t none of the feedback provided had any s i g n i f i c a n t e f f e c t 43 on the l e a rn ing and performance of the movements ta sks in the study. She concluded t h a t e x t r i n s i c feedback provided a f t e r the completion of a performance did not b e n e f i t the menta lly r e ta rded . ■ Baumeis t e r , Hawkins and Holland (1966) a lso conducted a study i n ­ v e s t i g a t i n g the e f f e c t s o f e x t r i n s i c feedback on the motor performance of the menta l ly r e t a rd ed . In c o n t r a s t to Knowlest feedback adm in i s t r a ­ t ion , Baumeister and h is a s s o c i a t e s provided t h e i r s ub jec t s with feed ­ back during performance of a p u r s u i t r o t o r ta sk by f l a s h in g a l i g h t whenever the sub jec t s were on t a r g e t . The i n v e s t i g a to r s found t h a t the r e t a rd ed sub jec t s s i g n i f i c a n t l y improved t h e i r performances when pro­ vided feedback concu r ren t ly with t h e i r performances. The d i s p a r i t y between Knowles' f ind ings and the outcome of Baumeis ter, Hawkins and Ho l land 's study s t imu la te s s pecu la t ion about the most e f f e c t i v e way to p re sen t feedback to the menta l ly r e ta rded . The need fo r c on cep tu a l i z a t io n may perhaps be reduced when p e r t i n e n t informat ion i s d e l iv e red during performance r a t h e r than following i t s completion. Since i t has been sugges ted t h a t motor performance prob­ lems of the r e t a rd ed may be a r e s u l t o f d i f f i c u l t i e s in process ing a b s t r a c t in fo rmat ion , concu r ren t p rov is ion of feedback may be an e f f e c t i v e method of p re sen t ing concre te informat ion to r e ta rded pe r ­ formers . Perhaps had the v ideotape feedback in t h i s i n v e s t ig a t i o n somehow been provided concu r ren t ly with the performances of the s tand ­ ing broad jump, the outcome of t h i s study may have been d i f f e r e n t . The . r e s u l t s of t h i s i n v e s t i g a t i o n may have been in f luenced some­ what by the a t t i t u d e s o f the sub jec t s toward the movement t a sk and the experimental t re a tmen t . C ra t ty (1974) d iscussed in a t t e n t i v e n e s s and d i s t r a c t a b i I i t y as f a c t o r s t h a t might p o t e n t i a l Iy i n h i b i t e f f i c i e n t informat ion process ing by the menta lly r e t a rd ed . Some s ub je c t s in the Verbal Feedback Group and the Video/verbal Feedback Group o f ten became impa t ien t with having to perform the s tand ing broad jump ten times and consequently did not always pay c lo se a t t e n t i o n when feedback was being provided. The sub jec t s in the Video/verbal Feedback Group were i n i ­ t i a l l y q u i t e a t t e n t i v e to the v ideotape r e p l a y s , but a f t e r th r e e t r e a t ­ ment se s s ions grew u n in t e r e s t ed in viewing t h e i r performances'. Despite the con ten t ions held by some (C r a t t y , 1968; Neufeld , 1972; Ryan, 1969) t h a t v ideotape cna p re sen t t a ng ib le and i n t e r p r e t a b l e i n ­ fo rmat ion , t h i s p r e s en t i n v e s t i g a t i o n found t h a t the use o f v ideotape to r e l ay performance informat ion did not b e n e f i t the menta l ly r e ta rded s u b j e c t s ' l ea rn ing or performance of a movement t a sk , Perhaps the low cogn i t ive level of the sub je c t s l im i t ed t h e i r perceptual c a p a b i l i t i e s as Alley (1968) sugges ted . I t appears t h a t al though feedback was provided to the r e t a rd ed sub jec t s in a concre te manner, the sub jec t s were s t i l l unable to pe rce ive or modify e r r o r s in performance even when the e r r o r s were s p e c i f i c a l l y poin ted out to the sub jec t s by the i n v e s t i g a t o r . The menta l ly r e t a rd ed sub jec t s in t h i s study were poss ib ly a t too 45 low of a performance level t o b e n e f i t from the v ideo tape rep lay s . Following t h e i r a n a ly s i s of l i t e r a t u r e concerned with the e f f e c t iv en e s s o f v ideotape rep lay on motor s k i l l a c q u i s i t i o n , Ro ths te tn and Arnold (1976) concluded t h a t beginners did not seem to p r o f i t from exposure to videotape record ings o f t h e i r performances. DelRey (1971) ind ica ted t h i s a l s o , and specu la ted t h a t beginners did not b e n e f i t from videotape rep lay because t h e i r a t t e n t i o n was u su a l ly not d i r e c t e d to p e r t i n e n t aspec ts of the recorded performances. Most o f the r e ta rded sub jec t s in t h i s p re sen t s tudy performed the s tand ing broad jump a t a beginning s k i l l l e v e l . The sub je c t s rece iv ing the v ideo /ve rba l feedback t r e a t ­ ment were s p e c i f i c a l l y d i r e c ted to c e r t a i n f a c to r s o f t h e i r performances while viewing the rep lays o f t h e i r jumps, as DelRey sugges ted . Since th e re was no s i g n i f i c a n t d i f f e r en ce between the i n i t i a l and f i n a l performances o f the Video/verbal Feedback Group, i t would appear t h a t menta l ly r e t a rd ed in d iv idua l s a t a beginning performance level do not p r o f i t from videotape feedback even when t h e i r a t t e n t i o n i s d i r e c ted to s p e c i f i c a spec ts o f recorded performances. Summary The r e s u l t s o f t h i s study f a i l e d to f ind v ideo tape feedback to be a p o s i t i v e tool in enhancing th e menta l ly r e t a r d e d ' s motor lea rn ing and performance of a s e l e c t e d motor t a sk . Unfo r tuna te ly , few o the r s tud ie s have inv e s t ig a t e d the use of videotape with the menta l ly r e t a rd e d , and 46 the r e s u l t s o f t h i s study should not be considered conc lus ive . Factors t h a t may have a f f e c t ed the outcome could have been i n a t t e n t i v e n e s s or d i s t r a c t i b i I i t y (C r a t t y , 1974.) Poor perceptual process ing may have a lso accounted f o r the lack of s i g n i f i c a n t changes in performance (Al ley , 1968.) The f a c t t h a t the. s ub je c t s were a t a beginning level a t the motor s k i l l used in t h i s s tudy may have been a f a c t o r in the lack of s i g n i f i c a n t e f f e c t s o f th e v ideotape feedback (Ro ths te in and Arnold, 1976.) SUMMARY, CONCLUSIONS AND RECOMMENDATIONS CHAPTER VI ■ Summary Purpose . The purpose o f t h i s study was to examine the e f f e c t s o f videotape feedback on menta l ly r e ta rded a d u l t s ' performance of a motor t a sk . Videotape record ings were u t i l i z e d as feedback regard ing performances of the s tanding broad jump of menta l ly r e t a rd ed s u b j e c t s . The conclus ions of the reviewed l i t e r a t u r e regard ing feedback was t h a t i t played a c r i t i c a l ro le in the l e a rn ing p roce ss , and t h a t visual feedback was the most i n f l u e n t i a l type o f feedback in motor le a rn ing . The l i t e r a t u r e concerned with v ideotape ind ic a ted t h a t the value o f . using v ideotape record ings to provide feedback lay in the f a c t t h a t the record ings p re sen ted informat ion in a c l e a r and concise manner. L i t e r a t u r e dea l ing w i th motor lea rn ing and the men ta l ly r e ta rded reveal ed t h a t an i n a b i l i t y to concep tua l ize movements may be one exp lana t ion fo r the d i f f i c u l t i e s exper ienced by the re t a rd ed in motor l e a rn ing and s k i l l a c q u i s i t i o n . Impl ica t ions were made.in some sources t h a t video­ tape could p o t e n t i a l l y a id the developmenta lIy d i s ab led in motor s k i l l lea rn ing by p re s en t ing informat ion necessa ry f o r l e a rn ing a s k i l l in a concrete manner, thus reducing the need f o r c on cep tu a l i z a t io n . 48 Procedures An i n i t i a l assessment was made o f s ix te en men ta l ly r e t a rd ed a d u l t s ' jumping p a t t e rn s while they performed the s tanding broad jump. The sub jec t s were then d iv ided in to th re e groups to undergo the following t rea tmen ts : (I). Control Group: The sub jec t s p ra c t i c e d the s tand ing broad jump and rece ived no feedback regard ing t h e i r performances; (2) Verbal Feedback Group: The sub jec t s p r a c t i c ed the s tand ing broad jump and rec ieved s tanda rd ized verbal cues on how to improve t h e i r jumping p a t t e r n s ; and (3) Video/verbal Feedback Group: The sub jec t s p ra c t ic ed the s tand ing broad jump and rece ived s tanda rd ized verbal feedback cues whi le viewing a videotape record ing o f t h e i r performances; The sub jec t s rece ived t h e i r r e s p e c t iv e t rea tmen ts once weekly fo r a period of s ix weeks. A f i n a l eva lua t ion was made o f the s u b j e c t s ' jumping p a t t e rn s fo l lowing the conclus ion of the t r e a tm en t s e s s i on s . Desc r ip t ive s t a t i s t i c s were e s t a b l i s h e d fo r the i n i t i a l and f i n a l performances of the s tand ing broad jump. A ONEWAY ana ly s i s of var iance as used to compare the f i n a l performances of the t h r e e groups. A t - t e s t was used to compare the i n i t i a l and f i n a l performances o f each group. Results There was no s i g n i f i c a n t d i f f e r en c e between the f i n a l performances of the th ree groups fo llowing the experimental t r e a tmen t . There were no s i g n i f i c a n t d i f f e r en c e s between the i n i t i a l and f i n a l performances 49 of any of the groups. Conclusions / - The fo llowing conclus ions can be formulated s p e c i f i c a l l y f o r the popula tion of t h i s s tudy based on the r e s u l t s o f the i n v e s t i g a t i o n . Caution should he exe rc i sed in g ene r a l i z ing the r e s u l t s to o th e r popu la t ions , 1, In t h i s s tudy , feedback provided by verbal cues has no s i g n i f i c a n t e f f e c t on the l e a rn ing or mastery of the s tanding brgad jump by the menta l ly r e t a rd ed s u b j e c t s , 2 , In t h i s s tudy , feedback provided by v ideotape rep lay accom- . panied by verbal cues has no s i g n i f i c a n t e f f e c t on the l e a r n ­ ing or mastery o f t h e s tanding broad jump by the menta l ly re ta rded a d u l t s u b j e c t s , Tbe lack of a more d i s c r im ina t ing tool may.be one f a c t o r under­ ly ing the non -s ign i f i .can t r e s u l t s . The tool used in t h i s s tudy was designed f o r use to g e n e r a l ly a ssess the jumping p a t t e r n s o f young ch i ld ren . I t was the most a pp rop r ia te tool found t h a t could be adequate ly modif ied f o r use in t h i s s tudy. Videotape may be a p o t e n t i a l l y va luab le tool to d e l i v e r concre te and i n t e r p r e t a b l e v isua l feedback to menta l ly r e t a rd ed i n d i v i d u a l s . Es tab l i shed movement p a t t e r n s a r e , however, d i f f i c u l t to change, and the f a c t t h a t the s ub je c t s in t h i s study were a l l a d u l t s with f i rm ly 50 e s tab l i s h ed jumping p a t t e r n s may have been an element in the outcome of the i n v e s t i g a t i o n . A general conclusion of t h i s s tudy i s , nonethe­ l e s s , t h a t v ideotape feedback, as admin is tered in t h i s s tudy , does not have a s i g n i f i c a n t e f f e c t on the s tand ing broad jump performances of mild ly and modera tely menta l ly r e ta rded a d u l t s . Recommendations Evidence of the e f f e c t s o f v ideotape feedback on the motor l e a r n ­ ing and performance o f menta l ly r e t a rd ed in d iv idua l s in s o re ly l a ck ­ ing. The r e s u l t s o f t h i s s tudy revea led no s i g n i f i c a n t e f f e c t s of t h i s mode of feedback, a l though the l i t e r a t u r e i n d i c a t ed t h a t the po ten t i a l of v ideo tape as a feedback technique with the r e t a rd ed was promising. The fo llowing recommendations f o r f u r t h e r re sea rch in the a reas o f v ideo tape as a feedback mode and motor, l e a rn ing and the menta lly r e t a rd ed a re o f f e red : 1. Conduct s tu d i e s to i n v e s t i g a t e the e f f e c t s o f v ideo tape fe ed ­ back on the l e a rn ing and performance of young menta l ly r e ­ ta rded in d iv id u a l s . Retarded ch i ld ren and youth s t i l l in the developmental s tages may b e n e f i t from t h i s type of feedback. 2. Conduct long i tud in a l s tud ie s involv ing l a r g e r popu la t ions o f menta l ly r e t a rd ed persons. S tud ies such as these may y i e l d more conc lus ive evidence regard ing feedback and the motor 51 lea rn ing process in the menta l ly r e ta rded by inco rpo ra t ing many motor s k i l l s in the i n v e s t i g a t i o n s , 3. Devise more dynamic ways to d e l i v e r v ideotape feedback to menta lly r e t a rd ed ind iv id u a l s . By p re s en t ing feedback i n ­ formation in a manner t h a t i s s t im u l a t i n g , r e t a rd ed l e a rn e r s may d i sp lay more i n t e r e s t and enthusiasm in l e a rn ing and p r a c t i c i n g motor s k i l l s . Feedback t r ea tmen t and oppo r tun i ­ t i e s f o r p r a c t i c e should a l so be provided a t more f r equen t i n t e r v a l s than the l im i t a t i o n s o f t h i s s tudy would allow. 4. Develop assessment too l s designed s p e c i f i c a l l y to eva lua te movement p a t t e r n s and motor s k i l l s o f the men ta l ly r e t a rd ed . Cu r ren t ly , inadequate means o f a s s e s s ing the motor p r o f i c i e n ­ cy o f developmenta lIy d i sab led in d iv idua l s o f t en i n h i b i t s e f f e c t i v e p r e s c r i p t i o n o f the rapy o r remedial a c t i v i t i e s which could a id the r e t a rd ed in overcoming t h e i r motor d e f i c i e n c i e s . Work in t h i s p a r t i c u l a r area would be a major c o n t r ib u t io n to the f i e l d o f motor l e a rn ing and the men ta l ly r e t a rd ed . APPENDICES 53 APPENDIX A LETTER OF CORRESPONDENCE AND SUBJECT CONSENT FORM PHYSICAL EDUCATION TRAINING PROJECT FOR THE EXCEPTIONAL INDIVIDUAL DEPARTMENT OF HEALTH PHYSICAL EDUCATION AND RECREATION CRAIG STEWART EDD PROJECT DIRECTOR M ON TAN A STATE UNIVERSITY. BOZEMAN M ONTANA 59717 March 13, 1980 Dear Group Home Counselors , My name i s Laura Sim, and I am a graduate a s s i s t a n t working with Dr. Craig Stewart a t Montana S t a t e Un ive rs i ty . As p a r t i a l f u l f i l lm e n t of the requirements f o r a Master o f Science degree I in tend to conduct research concerning motor s k i l l a c q u i s i t i o n by the menta l ly r e t a rd ed . I would l i k e to do a s tudy using the ind iv idua l s p a r t i c i p a t i n g in the Thursday n igh t r e c r e a t i o n program here a t the Univers i ty . I plan to i n v e s t i g a t e the e f f e c t s of using videotape feedback in the development of jumping s k i l l wi th the developmentalIy d i sab led . There i s some evidence t h a t i n d i c a t e s videotape i s a va luab le method of p rovid ing performance in format ion t h a t may enhance motor l earn ing by the r e t a r d e d , but much more re sea rch in the area i s d r a s t i c a l l y needed. The p a r t i c i p a n t s in the study w i l l work on jumping s k i l l s f o r approximate ly twenty minutes each Thursday, beginning on April IOth and con t inu ing u n t i l June 5 th . The v ideotape record ings of the sub jec t s w i l l be used only as feedback to the in d iv id u a l s , and wil l remain s t r i c t l y c o n f i d e n t i a l . All the s t a t i s t i c a l r e s u l t s w i l l be presented anonymously in the publi shed t h e s i s , and wi l l be a v a i l ­ able to you upon r eque s t . I f you have any q u e s t i o n s , concerns or o b j e c t io n s , p lease fee l f r e e to c on tac t me during the day a t 994-2260 or in the evening a t 586-0889. I t wil l be a g r e a t help i f you would encourage the c l i e n t s to a t t e nd the program r e g u l a r l y as t h e i r presence and p a r t i c i p a t i o n i s e s s e n t i a l to the outcome of the study. Thank you very much f o r your coopera tion . S ince re ly , Laura J . Sim MONTANA STATE UNIVERSITY HUMAN SUBJECTS IN RESEARCH CONSENT FORM T i t l e of resea rch : The E f fe c t s of Videotape Feedback on the Standing Broad Jump Performances of Mildly and Moderately Mentally Retarded Adults . I n v e s t ig a to r : Laura J . Sim, Graduate A ss i s tan t B.E.H. Training ' P ro je c t Department of Heal th , Physical Education and Recreation Montana S t a t e Univers i ty Bozeman, Montana I , _____________________ ______________, have been provided: A (name of p a r t i c i p a n t ) general d e s c r ip t i o n o f the above named i n v e s t ig a t i o n and i t s purpose:an exp lana t ion of why I was s e l e c ted to p a r t i c i p a t e ; and an exp lana t ion of my r e s p o n s i b i l i t i e s as a p a r t i c i p a n t , I hereby consent to p a r t i c i p a t e in the i n v e s t i g a t i o n . s ign a tu re of p a r t i c i p a n t 56 APPENDIX B PROCEDURES FOR THE STANDING BROAD JUMP AS DESCRIBED IN THE AAHPER SPECIAL FITNESS MANUAL FOR MILDLY MENTALLY RETARDED PERSONS AND THE ASSESSMENT TOOL DEVELOPED BY McCLENAGHAN AND GALLAHUE Procedures f o r the s tand ing broad jump as descr ibed on page 18 o f the AAHPER Special F i tn e s s Manual f o r Mildly Menta lly Retarded Persons: Equipment: Mat, F loor , o r ou t s id e jumping p i t and tape measure. De sc r ip t ion : Pupil s tands with the f e e t severa l inches a p a r t and the toes j u s t behtnd the t a k e - o f f l i n e . P repa ra to ry to jumping, the pupil swings the arms backward and bends the knees. The jump i s accomplished by s imultaneously ex tending the knees and swinging the arms forward. Rules : . 1. Allow th r e e t r i a l s . (*N0TE: Five t r i a l s were g iven . ) 2. Using a t a p e , measure from the t a k e - o f f l i n e to the back of the heel n e a r e s t the t a k e - o f f l i n e . 3. When the t e s t in given indoors , i t i s convenient to tape the 57 tape measure to the f l o o r a t r i g h t angles to the t a k e - o f f l i n e and have the pup i l s jump along the t ape . The sco re r s tands to the s ide and takes the measurement. Sco r ing : Record the b e s t of the th r e e t r i a l s in f e e t and inches to the n e a r e s t inch. (* NOTE: For t h i s s tudy , the mean of f i v e t r i a l s was u t i l i z e d . The d i s t a n ce s were recorded in inches and measured to the n e a r e s t one -ha l f inch . ) The assessment tool on the following page was developed by McClenaghan and Gallahue (McClehaghan and Gallahue, 1978: 104.) The following mod if ica t ions were made by the i n v e s t i g a to r to adapt the tool f o r use in. t h i s study: 1. Performance c h a r a c t e r i s t i c s f o r trunk ac t ion a t the elementary level were added as th e r e were none l i s t e d in the o r ig i n a l t o o l . 2. A scor ing system was devised in order t h a t the tool may be adapted f o r s t a t i s t i c a l t r e a tmen t . This system cons i s ted of ass ign ing a numerical va lue to each of the performance l e v e l s . The i n i t i a l s tage was ass igned the number one, the e lementary s tage the number two and the mature s tage the number th r e e . The sub jec t s were evalua ted by a sse ss ing the a c t ion s o f the arms, trunk and lower ex t remet ies s ep a r ­ a t e l y . By adding the numbers ass igned to the level a t which they pe r ­ formed each body a c t i o n , a t o t a l s co re , r e f e r r e d to in t h i s s tudy as the p r o f i l e s co re , was determined. For example, a sub jec t whose arm a c t ion was a t the i n i t i a l leve l (a va lue o f one,) t runk a c t ion was a t the e lementary level (a va lue of two,) and leg -h ip ac t ion was a t the i n i t i a l leve l (a value of one) would have a p r o f i l e score of fou r . I t was t h i s p r o f i l e score t h a t was sub jec ted to s t a t i s t i c a l an a ly s i s to determine the r e s u l t s of t h i s i n v e s t i g a t i o n . 3. Blanks on which to record the d i s t a n ce s of the f iv e t r i a l s , the p r o f i l e scores and the sub je c t i d e n t i f i c a t i o n number were added. 59 INITIAL ELEMENTARY MATURE A A Limited swing; I n i t i a t e jumping Move high and to R C arms do not a c t ion . the r e a r during M T i n i t i a t e the Always remain p rep a ra to ry crouch. I jumping a c t ion . toward f r o n t o f During t a k e o f f , they O During f l i g h t . body during p re - swing forward N sideward/down- para to. ry crouch. with fo rce and ward or r e a r - Move out to s id e to reach high. ward/upward, to main ta in balance Arms a re held high main ta in b a l - during f l i g h t . th roughout the ance. jumping a c t i on . T A Moves in ve r - S l i g h t angle of Trunk i s p rope l led R C t i c a l d i r e c - t runk ; a l i t t l e ■ a t approximately U T t i o n ; l i t t l e more emphasis, on a 45 degree angle. N I emphasis upon ho r izon ta l Major emphasis i s . K O length of d i s t a n ce . on ho r izon ta l N j ump. d i s t a n ce . L A Prepara to ry P repa ra to ry crouch Prepa ra to ry crouch E C crouch i s i s deeper and i s deep and con- G T in c o n s i s t e n t more c o n s i s t e n t . s i s t e n t . - I in terms of Extension i s more Complete ex tens ion H O leg f l e x io n . complete a t of a nk le s , knees. I N D i f f i c u l t y using tak eo f f . and hips a t take- . „.P both f e e t . Hips a re f lexed o f f . Extension a t during f l i g h t . Thighs a re held t a k e o f f i s and th ighs a re p a r a l l e l to Iimi ted . held in a ground during Weight f a l l s f lexed pos i - f l i g h t ; lower leg backward a t t i o n . hangs v e r t i c a l l y . landing . Body weight a t landing i s fo rward . Subjec t # P r o f i l e Score Distances J l #2 #3 #4 #5 X Dis tance 60 LEGS: ARMS: TRUNK: APPENDIX C STANDARDIZED VERBAL FEEDBACK CUES 1. crouch: "Bend your knees more before you jump," 2 . t a k eo f f : "S t r a igh ten your legs as f a s t as you. can when you jump." 3. t a k eo f f : "Try to jump o f f your t o e s . " 4. Landing: "Bend down when you land ," 5. crouch: "Swing your arms behind you befo re you jump." 6 . t a k eo f f : "Swing your arms forward over your head when you jump and keep then high in the a i r the whole t ime."- 7. land ing : "Keep your arms in f r o n t o f you where you can see them when you land ," 8 . t a k eo f f : "Lean forward more when you jump," 9. f l i g h t : "Keep lean ing forward when you a re in the a i r . " 10. land ing : "Bend forward when you l a nd , " BIBLIOGRAPHY 62 BIBLIOGRAPHY AAHPER Kennedy Foundation. Special F i tnes s Manual f o r Mildly Mentally Retarded Pe rsons . Washington, D.C.: AAHPER Pub l i c a t i o n s -S a l e s , 1976. Adams, J .A. "A Closed Loop Theory o f Motor Learn ing ." Journal o f Motor Behavior, 3 (2) : 111-149, June , 1971. _________ and Goetz, E.T. "Feedback and P r a c t i c e as Var iab les in Error Detection and Co r re c t ion ." Journal of Motor Behavior , 5 (4 ) : 217- 224, December, 1973. _________ ; Gopher, D.; and L in te rn , G. "E f fec t s o f Visual and Prop r iocep t ive Feedback on Motor Lea rn ing .". Journal o f Motor Behavio r , 9 (1 ) : 11-22, March, 1977. A l ley , G.R. "Perceptual-Motor Performances o f Mentally Retarded Children A f te r Sys temat ic Visua l-Percep tua l T r a i n i n g . " American Journal of Mental De f ic iency , 73(2) : 247-250, September, 1968. Ast rand , P. and Rodahl, K. Textbook of Work Phys io logy . New York: McGraw-Hill Book Company, 1977. Baumeis t e r , A.; Hawkins, W.; and Holland, J . "Motor Learning and Knowledge of R e su l t s . 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Morgan, J .S . - "S tab i lome te r Performance o f Educable Mentally Retarded Children Under D i f f e r e n t i a l Feedback Cond i t ions ." Research Q u a r t e r l y , 48(4) : 711-716, December, 1977. Knowles, C.J.K. The E f fe c t s o f E x t r i n s i c Feedback on the Learning of Gross Motor S k i l l s by Mildly and Moderately Retarded Males. A Doctoral D i s s e r t a t i o n , Un ive rs i ty o f Texas a t Aus t in , 1973. Levy, J . "Social Reinforcment and Knowledge of Result s among Educable Mentally Retarded Ch i ld ren ." American Journal o f Mental Defic iency, 78 (6 ) : 752-758, May, 1974. I Lockhart , A. "What's In a Name?" IN S inge r , R.N, Readings in Motor Learn ing . P h i l ade lph ia : Lea and Feb iger , 1972, pages 2-6, McClenaghan, B.A. and Gal lahue , D.L. Fundamental Movement: A Developmental and Remedial Approach. Ph i l ade lph ia : W.B. Saunders Co. , 1978. 64 Mathews, D.K. Measurement in Physical Educa t ion . Ph i l ade lph ia : W.B. Saunders Co . , 1973. Morgan, N.A. "Comparison of Verbal and Visual Cues in Teaching Beginning Swimming." Research Q ua r te r ly , 42(4) : 431-435,. December, 1971. Nelson, R . ; Gibson, F . ; and Cu t t ing , D. C. "Videotape Modeling: The Development o f Three Appropria te Socia l Responses in a Mildly Retarded Chi ld ." Mental R e t a rd a t io n , 11(6): 24-28, December, 1973. Neufeld, M.M. and Neufeld, R.W. "Use o f Videotape Feedback in Swimming I n s t r u c t i o n with Emotionally Dis turbed C h i ld r e n . " Perceptual and Motor S k i l l s , 35(4) : 992, December, 1972. Oxendine, J .B . "Physical Educa t ion ." IN S inge r , R.N. (Ed.) The Psychomotor Domain: Movement Behavio rs , Ph i l ade lph ia : Lea and Feb ige r , 1972m, pages 165-192. Penman, K.A. "Re la t ive E f fec t iveness o f Teaching Beginning Tumbling. With and Without an I n s t a n t Replay Videotape Recorder." Perceptual and Motor S k i l l s , 28(6) : 45-46, February , 1969. Rar ick, G.L. "Motor Performance o f Mental ly Retarded Ch i ld ren ." IN Rar ick , G .L . , (Ed.) Human Growth and Development, New York: Academic P r e s s , 1973, pages 225-256. ________ ; Widdop, J . H , ; and Broadhead, G.D. "The Physical F i tness and Motor Performance of Educable Mentally Retarded Ch i ld r e n . " Exceptional Ch i ld ren , 36(3) : 509-519, March, 1970. Robb, M. "Feedback and Sk i l l Learn ing ." Research Q ua r t e r l y , 39(1): 175-184, March, 1968. Ross, S.A. "E f fec t s of an In ten s iv e Motor S k i l l s Train ing Program on Young Educable Mentally Retarded Ch i ld ren ," Americal Journal of Mental De f ic iency , 73 (6 ) ; 920-926, May, 1969. Ro th s t e in, A.L. " E f f e c t i v e .Use of Videotape Replay in Learning Motor S k i l l s . " Journal o f Physical Education and R ec rea t ion , 51(2): 59- 60, February , 1980. ________ and Arnold, R.K. "Bridging the Gap: Appl ica t ion of Research on Videotape Feedback and Bowling." Motor S k i l l s : Theory Into P r a c t i c e , 1(1) : 35-62, F a l l , 1976. O I65 Ryan, P. "Videotape and Special Educa t ion ." Audiovisual I n s t r u c t i o n , 14(9): 30, November, 1969. Schweide r , A..W.. The E f fe c t o f Videotape Feedback on the Performance of T ra inab le Mentally Retarda tes on Cer ta in C l a s s i f i c a t i o n S k i l l s . A Doctoral D i s s e r t a t i o n , Temple U n iv e r s i ty , 1977. S h e r r i l l , C. Adapted Physical Education and Rec rea t ion . Dubuque, Iowa: Wm. C. Brown Co. P ub l i sh e r s , 1977. S inger , R.N. Motor Learning and Human Performance. London: The MacMillan Company, 1968. Smith, K.U. "Cybernetic Foundations o f Physical Behavioral S c i e n ce . " IN S inge r , R.N. (Ed.) Readings in Motor Learn ing . P h i l a d e lp h i a : Lea and Febiger , 1972. Wadsworth, H.G. The E f fe c t o f a Videotape Playback Process on Language S k i l l s , I n t e l l e g e n c e , Se l f -Concep t , and Classroom Behavior of Educable Mentally Handicapped C h i ld ren . Doctoral D i s s e r t a t i o n , Un ivers i ty o f Wisconsin, 1973. ■ Weisbord, H.F. "Videotape Feedback and Behavioral Change." Education and Tra in ing o f the Mentally Retarded, 11(1): 18-21, February, 1976. Wickstrom, R.L. Fundamental Motor P a t t e r n s . . Ph i l ade lph ia : Lea and Febiger , 1977. WiImore, J .H. A th l e t i c T ra in ing and Physical F i t n e s s . Boston: Allyn and Bacon, I n c . , 1976. MONTANA STATE UN IVERSITY L IBRAR IES 762 1001 5494 5 N378 SiHlS Sim, Laura J cop.2 The e ffec ts of video­ tape feedback on the standing broad jump performances . . . DATE I S S U E D TO ^ -0 «-’ S ^ ' I s ii C U t C J C i 6 7 .........£