DOT HS 810 681

APPENDIX G: Brainstorming Rating Scale Results
Older People’s Willingness to Participate as a Function of Method Used to Measure Driving Performance

A. Closed Course	E. . Simulation: Level 1
B. On-the Road (in Traffic)	F. Instrumented Vehicle (Driver’s own car)
C. Simulation: Level 3	G. Functional Measures Validated as Crash Predictors
D. Simulation: Level 2

Method	All Experts				Physicians & Pharmacologists				Driving Evaluators				Behavioral Researchers				Database Experts
	n	mean	sd	range	n	mean	sd	range	n	mean	sd	range	n	mean	sd	Range	n	mean	sd	range
A	14	58.8	18.2	25-85	5	60.2	24.2	25-85	3	65.0	13.2	50-75	3	55.7	16.8	45-75	3	53.3	20.2	35-75
B	14	57.8	15.3	25-80	5	56.8	23.5	25-80	3	65.0	8.7	60-75	3	56.7	10.4	45-65	3	53.3	10.4	45-65
C	14	47.9	19.3	10-70	5	54.0	25.4	10-70	3	41.7	7.6	35-50	3	40.3	27.4	16-70	3	51.7	7.6	45-60
D	14	50.7	18.2	25-70	5	58.4	20.6	25-75	3	40.0	13.2	30-55	3	45.0	26.5	25-75	3	54.3	5.1	50-60
E	14	53.6	19.1	25-75	5	62.0	18.9	35-80	3	40.0	21.8	25-65	3	50.0	26.0	35-80	3	56.7	2.9	55-60
F	10	61.3	16.5	35-85	3	57.3	21.1	35-77	2	55.5	7.8	50-61	2	60.0	28.3	40-80	3	70.0	13.2	60-85
G	11	68.8	18.4	30-90	4	62.5	25.0	30-90	2	77.5	3.5	75-80	2	78.0	17.0	66-90	3	65.3	18.5	45-81