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Older drivers’ attitudes and preferences about instrument cluster designs in vehicles revealed by the Dashboard Questionnaire

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Abstract

Older drivers are a rapidly growing demographic group worldwide; many have visual processing impairments. Little is known about their preferences about vehicle instrument cluster design. We evaluated the psychometric properties of a questionnaire on “dashboard” design for a population-based sample of 1000 older drivers. Topics included gauges, knobs/switches, and interior lighting; items were statements about their visual design. Response options used a Likert-scale (“Definitely True” to “Definitely False”). Factor and Rasch analyses identified underlying subscales. Driver responses revealed four thematic subscales fitting the Rasch model: cognitive processing, lighting, pattern recognition, and obstructions. Internal consistency of subscales was acceptable (0.70–0.87); all possessed a sufficiently unidimensional structure. Opportunities for improvement were identified (item scope, category ordering, discrimination of respondents’ perception levels). Assessment of motor vehicle dashboard preferences indicated cognitive processing, lighting, pattern recognition, and obstructions are areas relevant to older drivers. Future work will examine the relationship between older drivers’ visual function (e.g., contrast sensitivity, visual processing speed) and their design preferences as revealed by the Dashboard Questionnaire, with the aim to optimize instrument cluster displays for older drivers.

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Funding

General Motors PRVA0258, National Institutes of Health R01EY018966, P30AG022838, and P30EY003039, EyeSight Foundation of Alabama, and Research to Prevent Blindness.

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Contributions

GM, TS, and CO: were responsible for the conception and design of the Dashboard Questionnaire. CO and GM: were responsible for the overall study design and data collection. SS: completed and interpreted all Rasch analyses, with involvement from TAS, GM, CH, and CO. TAS, CH, SS, GM, and CO: all drafted portions or substantively revised the manuscript. All authors approved the final version and each take responsibility for the accuracy and integrity of all work presented.

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Correspondence to Thomas A. Swain.

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The authors declare no competing interests.

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The authors declare that they have no competing interests.

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The University of Alabama at Birmingham Institutional Review Board approved this study (#080214009). All participants completed informed consent.

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Swain, T.A., Snyder, S.W., McGwin, G. et al. Older drivers’ attitudes and preferences about instrument cluster designs in vehicles revealed by the Dashboard Questionnaire. Cogn Tech Work 25, 65–74 (2023). https://doi.org/10.1007/s10111-022-00710-6

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  • DOI: https://doi.org/10.1007/s10111-022-00710-6

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