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dc.contributor.authorHellem, Tracy
dc.contributor.authorScholl, Lindsay
dc.contributor.authorFerguson, Hayden
dc.contributor.authorMcGlade, Erin
dc.contributor.authorYurgelun-Todd, Deborah
dc.contributor.authorRenshaw, Perry
dc.contributor.authorHildreth, Laura
dc.date.accessioned2017-12-21T18:44:24Z
dc.date.available2017-12-21T18:44:24Z
dc.date.issued2017-08
dc.identifier.citationHellem, Tracy, Lindsay Scholl, Hayden Ferguson, Erin McGlade, Deborah Yurgelun-Todd, Perry Renshaw, and Laura Hildreth. "Preliminary Psychometric Evaluation of the Hamilton Depression Rating Scale in Methamphetamine Dependence." Journal of Dual Diagnosis (August 2017). DOI: 10.1080/15504263.2017.1356493.en_US
dc.identifier.issn1550-4271
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/14110
dc.description.abstractOBJECTIVE: The purpose of this study was to test the initial psychometric properties of the 17-item Hamilton Depression Rating Scale (HAM-D) in individuals with and without major depressive disorder who use methamphetamine. We used data from two completed studies and two ongoing clinical trials. The HAM-D has well established reliability and validity in a variety of populations. However, there are no published reports of reliability and validity of the HAM-D in a methamphetamine using population. METHODS: HAM-D and depression status data were extracted from four separate studies for this psychometric assessment. Using these data, we evaluated three measures of construct validity: internal consistency, contrasted groups validity and factorial validity. RESULTS: We found potential concerns with the construct validity of the HAM-D in users of methamphetamine. Intercorrelations between items were primarily less than 0.20 and the Cronbach's alpha value in this sample was 0.58 indicating potential issues with internal consistency. The results of a two sample t-tests suggest concerns with contrasted group validity, as no significant difference in average scores were found for nine items. Consistent with previous studies, a principal component analysis indicates that the HAM-D is multidimensional. CONCLUSIONS: The 17-item HAM-D might not reliably and validly measure depression severity in a methamphetamine using population. Given our small sample, additional research is needed, though, to further test the psychometric properties of the HAM-D in individuals who use methamphetamine.en_US
dc.description.sponsorshipTracy Hellem received funding from The College of Nursing and Office of Research and Economic Development at Montana State University to support this project.en_US
dc.titlePreliminary Psychometric Evaluation of the Hamilton Depression Rating Scale in Methamphetamine Dependenceen_US
mus.citation.journaltitleJournal of Dual Diagnosisen_US
mus.identifier.categoryHealth & Medical Sciencesen_US
mus.identifier.categorySocial Sciencesen_US
mus.identifier.doi10.1080/15504263.2017.1356493en_US
mus.relation.collegeCollege of Nursingen_US
mus.relation.departmentNursing.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.data.thumbpage4en_US


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