P-Drive On-Road: Internal Scale Validity and Reliability of an Assessment of On-Road Driving Performance in People with Neurological Disorders

The aim of this study was to determine internal scale validity and reliability of P-Drive on-road by observing driving performance among people with neurological disorders. The study comprised a consecutive sample of 205 persons with stroke, dementia, or mild cognitive impairment who were remitted for and performed a standardized test in real traffic. Their driving abilities were evaluated with a new assessment tool, P-Drive on-road. Aspects of validity and reliability of the tool were analyzed using a Rasch rating scale model. The results indicated that the rating scale functioned as intended and a principal component analysis indicated that the items formed a unidimensional scale. Acceptable levels of person response validity were found and the scale was also able to distinguish between the abilities of the drivers with a person separation reliability of 0.90. The results indicate that P-Drive on-road is valid and reliable for producing a linear measure of driving ability in people with stroke, dementia and mild cognitive impairment, and has the potential to become a clinically useful assessment tool for on-road driving tests.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/11038128
• Supplemental Notes:
  • Abstract reprinted with permission of Taylor & Francis.
• Authors:
  • Patomella, Ann-Helen
  • Tham, Kerstin
  • Johansson, Kurt
  • Kottorp, Anders
• Publication Date: 2010

Language

• English

Media Info

• Media Type: Print
• Features: Appendices; Figures; References; Tables;
• Pagination: pp 86-93
• Serial:
  • Scandinavian Journal of Occupational Therapy
  • Volume: 17
  • Issue Number: 1
  • Publisher: Taylor & Francis
  • ISSN: 1103-8128
  • EISSN: 1651-2014

Subject/Index Terms

• TRT Terms: Automobile drivers; Automobile driving; Cognition; Cognitive impairment; Dementia; Driving tests; Risk assessment; Traffic; Validity
• Uncontrolled Terms: Stroke; Test reliability
• Subject Areas: Highways; Safety and Human Factors; I83: Accidents and the Human Factor;

Filing Info

• Accession Number: 01340925
• Record Type: Publication
• Files: TRIS
• Created Date: May 26 2011 10:29AM