University Student Depression Inventory (USDI) : confirmatory factor analysis and review of psychometric properties

Romaniuk, Madeline & Khawaja, Nigar G. (2013) University Student Depression Inventory (USDI) : confirmatory factor analysis and review of psychometric properties. Journal of Affective Disorders, 150(3), pp. 766-775.

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Background: The 30-item USDI is a self-report measure that assesses depressive symptoms among university students. It consists of three correlated three factors: Lethargy, Cognitive-Emotional and Academic motivation. The current research used confirmatory factor analysis to asses construct validity and determine whether the original factor structure would be replicated in a different sample. Psychometric properties were also examined.

Method: Participants were 1148 students (mean age 22.84 years, SD = 6.85) across all faculties from a large Australian metropolitan university. Students completed a questionnaire comprising of the USDI, the Depression Anxiety Stress Scale (DASS) and Life Satisfaction Scale (LSS).

Results: The three correlated factor model was shown to be an acceptable fit to the data, indicating sound construct validity. Internal consistency of the scale was also demonstrated to be sound, with high Cronbach Alpha values. Temporal stability of the scale was also shown to be strong through test-retest analysis. Finally, concurrent and discriminant validity was examined with correlations between the USDI and DASS subscales as well as the LSS, with sound results contributing to further support the construct validity of the scale. Cut-off points were also developed to aid total score interpretation.

Limitations: Response rates are unclear. In addition, the representativeness of the sample could be improved potentially through targeted recruitment (i.e. reviewing the online sample statistics during data collection, examining the representativeness trends and addressing particular faculties within the university that were underrepresented).

Conclusions: The USDI provides a valid and reliable method of assessing depressive symptoms found among university students.

Impact and interest:

3 citations in Scopus
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3 citations in Web of Science®

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ID Code: 57917
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: Confirmatory factor analysis, Depression, Student, Assessment, HERN, USDI
DOI: 10.1016/j.jad.2013.02.037
ISSN: 0165-0327
Subjects: Australian and New Zealand Standard Research Classification > PSYCHOLOGY AND COGNITIVE SCIENCES (170000)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Psychology & Counselling
Copyright Owner: Copyright 2013 Elsevier B.V.
Copyright Statement: NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Affectrive Disorders. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Affectrive Disorders, [Volume 150, Issue 3, (25 September 2013)] DOI: 10.1016/j.jad.2013.02.037
Deposited On: 07 Mar 2013 23:25
Last Modified: 23 Jun 2015 14:17

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