Medicine and Health Sciences Commons^™

Prize-Based Contingency Management: A Vehicle Miles Of Travel Reduction Intervention, Joshua D. Marquit

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

During the past 50 years, air pollution has become a growing problem throughout the Intermountain West because of increases in personal vehicle ownership and usage. Scientists continue to design interventions to improve air quality by encouraging people to reduce their personal vehicle miles of travel (VMT). However, results of these interventions have only seen modest reductions in VMT because of some methodological and measurement issues. To address these limitations, a 14-week driving reduction intervention was conducted in Cache County, Utah. This intervention employed a prizebased contingency management system within a single-subject, A-B-A withdrawal research design that rewarded participants with prizes …