Using Serial Trichotomization With Common Cognitive Tests to Screen for Fitness to Drive

The aim of this study was to illustrate the use of serial trichotomization with five common tests of cognition to achieve greater precision in screening for fitness to drive. We collected data (using the Montreal Cognitive Assessment, Motor-Free Visual Perception Test, Clock-Drawing Test, Trail Maki...

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Bibliographic Details
Published in:The American journal of occupational therapy 2017-03, Vol.71 (2), p.7102260010p1-7102260010p8
Main Authors: Gibbons, Carrie, Smith, Nathan, Middleton, Randy, Clack, John, Weaver, Bruce, Dubois, Sacha, Bédard, Michel
Format: Article
Language:English
Subjects:
Aging (Individuals)
Analysis
Cognitive Tests
Community Involvement
Ethics
Individual Testing
Injuries
Measurement Techniques
Occupational therapy
Perception Tests
Physical fitness
Reaction Time
Research Design
Test Results
Visual Perception
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Summary:The aim of this study was to illustrate the use of serial trichotomization with five common tests of cognition to achieve greater precision in screening for fitness to drive. We collected data (using the Montreal Cognitive Assessment, Motor-Free Visual Perception Test, Clock-Drawing Test, Trail Making Test Part A and B [Trails B], and an on-road driving test) from 83 people referred for a driving evaluation. We identified cutpoints for 100% sensitivity and specificity for each test; the driving test was the gold standard. Using serial trichotomization, we classified drivers as either "Pass," "Fail," or "Indeterminate." Trails B had the best sensitivity and specificity (66.3% of participants correctly classified). After applying serial trichotomization, we correctly identified the driving test outcome for 78.3% of participants. A screening strategy using serial trichotomization of multiple test results may reduce uncertainty about fitness to drive.
ISSN:0272-9490
1943-7676
DOI:10.5014/ajot.2017.019695