title: Development and Validity of Western University's On-Road Assessment.
abstract: Although used across North America, many on-road studies do not explicitly document the content and metrics of on-road courses and accompanying assessments. This article discusses the development of the University of Western Ontario's on-road course, and elucidates the validity of its accompanying on-road assessment. We identified main components for developing an on-road course and used measurement theory to establish face, content, and initial construct validity. Five adult volunteer drivers and 30 drivers with multiple sclerosis participated in the study. The road course had face and content validity, representing 100% of roadway components determined through a content validity matrix and index. The known-groups method showed that debilitated drivers (vs. not debilitated), made more driving errors ( W = 463.50, p = .03), and failed the on-road course, indicating preliminary construct validity of the on-road assessment. This research guides and empirically supports a process for developing a road course and its assessment.
authors.affiliation: 1 University of Western Ontario, London, Canada.
authors.forename: Sherrilene
authors.initials: S
authors.lastname: Classen
authors.affiliation: 1 University of Western Ontario, London, Canada.
authors.forename: Sarah
authors.initials: S
authors.lastname: Krasniuk
authors.affiliation: 1 University of Western Ontario, London, Canada.
authors.forename: Liliana
authors.initials: L
authors.lastname: Alvarez
authors.affiliation: 1 University of Western Ontario, London, Canada.
authors.forename: Miriam
authors.initials: M
authors.lastname: Monahan
authors.affiliation: 1 University of Western Ontario, London, Canada.|2 London Health Sciences Centre, Ontario, Canada.
authors.forename: Sarah A
authors.initials: SA
authors.lastname: Morrow
authors.affiliation: 3 All Dominion Driver Training and Traffic Education Centres, Oakville, Ontario, Canada.
authors.forename: Tim
authors.initials: T
authors.lastname: Danter
mesh_terms: D000293:Adolescent; D000328:Adult; D001334:Automobile Driving / Q000523:psychology* / Q000592:standards; D005260:Female; D064368:Healthy Volunteers; D006801:Humans; D008297:Male; D008875:Middle Aged; D009048:Motor Skills / Q000502:physiology; D009103:Multiple Sclerosis / Q000523:psychology*; D015588:Observer Variation; D009788:Occupational Therapy; D011446:Prospective Studies; D011594:Psychometrics / Q000592:standards; D013647:Task Performance and Analysis; D055815:Young Adult
keywords: assessment; driving; psychometrics; road course development