@article{ref1,
title="P-Drive on-road: Internal scale validity and reliability of an assessment of on-road driving performance in people with neurological disorders",
journal="Scandinavian journal of occupational therapy",
year="2009",
author="Patomella, Ann-Helen and Tham, Kerstin and Johansson, Kjell and Kottorp, Anders",
volume="",
number="",
pages="1-8",
abstract="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.<p /> <p>Language: en</p>",
language="en",
issn="1103-8128",
doi="10.1080/11038120903071776",
url="http://dx.doi.org/10.1080/11038120903071776"
}