Sherrilene Classen, Pey-Shan Wen, Craig A. Velozo, Michel Bédard, Sandra M. Winter, Babette A. Brumback, Desiree N. Lanford; Rater Reliability and Rater Effects of the Safe Driving Behavior Measure. Am J Occup Ther 2012;66(1):69–77. https://doi.org/10.5014/ajot.2012.002261
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© 2019 American Occupational Therapy Association
We used the Safe Driving Behavior Measure (SDBM) to determine rater reliability and rater effects (erratic responses, severity, leniency) in three rater groups: 80 older drivers (mean age = 73.26, standard deviation = 5.30), 80 family members or caregivers (age range = 20–85 yr), and two driving evaluators. Rater agreement was significant only between the evaluators and the family members or caregivers. Participants rated driving ability without erratic effects. We observed an overall rater effect only between the evaluator and family members or caregivers, with the evaluators being the more severe rater group. Training family members or caregivers to rate driving behaviors more consistently with the evaluator’s ratings may enhance the SDBM’s usability and provide a role for occupational therapists to interpret proxy reports as an entry point for logical and efficient driving safety interventions.
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The SDBM can be used as a reliable tool to assess older drivers’ safe driving behavior in occupational therapy practice.
Driving evaluators may tend to rate more severely than F–C.
When reviewing the ratings of the SDBM, occupational therapists must take rater effects into account.
With adequate training, F–C may be the most available, accurate, and reliable resource for following up on the safe driving behaviors of older people.
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