Details:

Creators:
Classen, Sherrilene ; Velozo, C. ; Winter, S. ; Wang, Y. ; Lanford, D.
Classen, Sherrilene ; Velozo, C. ; Winter, S. ; Wang, Y. ; Lanford, D. Less -
Corporate Creators:
University of Florida
Corporate Contributors:
Florida. Department of Transportation
Subject/TRT Terms:
[+]
Aged Drivers Aging Drivers Drivers Elder Road Users High Risk Drivers Safe Mobility Screening
Resource Type:
Tech Report
Geographical Coverage:
Florida
Edition:
Final report; 04/11/2011-04/15/2012.
Corporate Publisher:
Florida Department of Transportation
Abstract:
With the aging of the Baby Boomers and ensuing Gray Tsunami in Florida leading the USA, older

drivers who are unfit to drive must be identified. The gold standard on-road test is expensive,

sophisticated, not available to many older drivers, and can only be validly conducted by a certified

driver rehabilitation specialist of whom we have about 500 in the nation. To overcome these limitations,

we have developed the Fitness-to-Drive Screening Measure (FTDS, previously known as the Safe

Driving Behavior Measure or SDBM), a free web-based tool ready for use by certified driver

rehabilitation specialists (CDRS), occupational therapy practitioners, other health care professionals,

and the caregivers/ family members of older drivers. This study used mixed methods, including item

response theory, to refine self-report and proxy versions of a screening tool measuring driving behaviors

of older adults, the SDBM. Understanding a driver’s level of ability or difficulty with driving behaviors

is a critical step providing a logical entry point for effective interventions, identifying optimal training

parameters, and predicting future driving ability. We determined measurement properties for the

SDBM, including validity (face, content, construct and criterion validity), factor structure,

dimensionality, and item/person-level psychometrics. We determined the rater severity of the three rater

groups (older driver, caregiver, and driving evaluator) and the criterion validity of the SDBM in relation

to the reputed gold standard, on-road driving evaluation. Lastly, we developed the SDBM as a Web-

based tool, including keyforms (rating profiles), ratings-based driver categories (i.e., basic, routine, and

accomplished), each with targeted recommendations (i.e., next steps to assist in determining fitness to

drive or to support driver health, knowledge, and skills). The findings suggest that this measure may be

useful for: (1) family members/ caregivers to identify at-risk older drivers and to follow logical next

steps based on keyform recommendations; (2) occupational therapy practitioners to identify an entry

point for further interventions or referrals; and (3) CDRS to develop realistic and targeted intervention goals to promote driving fitness. However, although not empirically tested, we also believe that this

tool, available on-line: http://fitnesstodrive.phhp.ufl.edu, will have applicability to be used or

disseminated among other health care practitioners, agents of the aging network, and stakeholders of the

Safe Mobility for Life Coalition, in Florida.


Format:
PDF
Funding:
BDK77 977-17
Collection(s):
US Transportation Collection
Main Document Checksum:
[+]
urn:sha256:b1a95ad6e9d30d0383534c1ac83718fc1944d0c4d6c701dbda43f0a87ce8cc89
Download URL:
https://rosap.ntl.bts.gov/view/dot/25051/dot_25051_DS1.pdf
File Type:

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