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Journal Article

Citation

Kay LG, Bundy AC, Clemson LM. Am. J. Occup. Ther. 2008; 62(2): 187-197.

Affiliation

Discipline of Occupational Therapy, Faculty of Health Sciences, University of Sydney, P.O. Box 170, Lidcombe, New South Wales 1825, Australia. L.Kay@usyd.edu.au

Copyright

(Copyright © 2008, American Occupational Therapy Association)

DOI

unavailable

PMID

18390012

Abstract

OBJECTIVE: The authors examined the construct and predictive validity and internal reliability of the Visual Recognition Slide Test developed at the University of Sydney (VRST-USyd). METHOD: A historical cohort study using retrospective descriptive analysis of VRST-USyd scores and on-road driving performance for 838 drivers with impairments was conducted. RESULTS: Rasch analysis provided evidence for the construct validity and internal reliability of the VRST-USyd. Goodness-of-fit statistics for all items were acceptable. The test had high participant and item reliability indexes and separated the participants into four groups with varying levels of skill. Using a cutoff score of 95/164, the sensitivity of the test was 81%, and the specificity was 90%. However, when coupled with clinicians' judgment of participants' awareness of their driving performance during the on-road assessment, this score improved. CONCLUSION: There is evidence for reliability and construct and predictive validity of the VRST-USyd. The measurement of awareness requires further research.


Language: en

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