AUTHOR=Classen Sherrilene , Medhizadah Shabnam , Romero Sergio , Lee Mi Jung 

TITLE=Construction and Validation of the 21 Item Fitness-to-Drive Screening Measure Short-Form

JOURNAL=Frontiers in Public Health

VOLUME=6

YEAR=2018

URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2018.00339

DOI=10.3389/fpubh.2018.00339

ISSN=2296-2565

ABSTRACT=<p><bold>Introduction:</bold> The Fitness-to-Drive Screening Measure is a free online screening tool that detects at-risk older drivers, however, it's 20 min administration time may render the 54-item tool less than optimal for clinical use. Thus, this study constructed and validated a 21-item FTDS Short-Form (FTDS-SF).</p><p><bold>Method:</bold> This mixed methods study used 200 proxy rater responses and older driver on-road assessments. We conducted a Rasch analysis to examine information at the level of the item and used content validity index scores to select items. Using a receiver operator characteristics curve we determined the concurrent validity of the FTDS-SF to on-road outcomes.</p><p><bold>Results:</bold> Twenty-one items were selected for the FTDS-SF. The area under the curve = 0.72, indicated the FTDS-SF predicted on-road outcomes with acceptable accuracy. Still, 68 drivers were misclassified.</p><p><bold>Conclusion:</bold> The FTDS-SF may reduce administration time, while still yielding acceptable psychometric properties. Yet, caution needs to be executed in clinical decision making as the measure is overly specific.</p>