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. 2014 Oct 9;8:772. doi: 10.3389/fnhum.2014.00772

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Copyright © 2014 Vaucher, Cardoso, Veldstra, Herzig, Herzog, Mangin and Favrat.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Concurrent validity between MedDrive and the UFOV in predicting on-road driving performance or driving self-restrictions. Correlations between MedDrive and on-road driving performance (A) and driving self-restriction score (B) on 182 older drivers. Concurrent validity was evaluated by providing the UFOV's correlations to the same measures of driving behavior (C,D). Dots correspond to each individual observation. Gray blocks' upper borders correspond to mean observed score values. Interval bars represent 95% CI. Dotted lines represent the best fit regression line. UFOV_mod was generated from log transformed values of visual processing, divided attention, and selective attention using SEM. This overall score was then transformed to range from 0 to 1. This method fitted driving behavior better than did the standard UFOV risk category method and made comparison with MedDrive more even. P-values correspond to LRtest statistics for R² = 0. UFOV, useful field of view; R², coefficient of determination; SEM, structural equation modeling.