131
Participants
Start Date
September 4, 2018
Primary Completion Date
October 1, 2020
Study Completion Date
October 1, 2020
Caffeine-Based Expectancy Challenge
Intervention to alter expectancies and encourage safe drug substitution (harm reduction plus expectancy modification)
Placebo-Based Expectancy Challenge
Intervention to alter expectancies (expectancy modification only)
University of Wyoming, Laramie
University of Wyoming
OTHER