Sim, Laura Jean2015-05-122015-05-121980https://scholarworks.montana.edu/handle/1/6098enPhysical education and trainingEducationPeople with mental disabilitiesJumpingFeedback (Psychology)Audio-visual materialsTeaching--Aids and devicesThe effects of videotape feedback on the standing broad jump performances of mildly and moderately mentally retarded adultsThesisCopyright 1980 by Laura Jean Sim