Using Novel Behavioral Economic Measures to Characterize Dual Marijuana and Tobacco Use in Young Adults
Brown University
120 participants
Feb 17, 2026
INTERVENTIONAL
Conditions
Summary
The multi session experimental study aims to determine dual use patterns of marijuana and tobacco by assessing the impact of price and availability of marijuana and tobacco using a cross price elasticity of demand task. The study will recruit 120 non-treatment seeking emerging young adults (18-25 years) who smoke marijuana and tobacco.
Eligibility
Inclusion Criteria5
- Males/females who are 18 to 25 years of age
- Young adults who currently smoke commercial tobacco cigarettes (≥1x weekly in the past 30 days and for the past six months)
- Young adults who currently smoke marijuana (≥4 times in past 30 days and at least weekly on average for the last six months)
- Participants must report purchasing their own tobacco and marijuana at least once in the past 6 months
- Participants must speak, comprehend, and read English.
Exclusion Criteria6
- Intention to quit marijuana or tobacco use in the next 30 days
- Self-reported illicit drug or heavy episodic alcohol use on \>20 days in the past month (excluding marijuana)
- Individuals who are pregnant or breastfeeding
- Positive saliva test for recent THC use
- Breath alcohol level above 0 at any session.
- Participants who exclusively roll their own tobacco cigarettes
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Interventions
Participants will be exposed to neutral followed by cannabis or tobacco cues in a fixed sequence while they answer questions about their subjective state. The cues will include everyday items (e.g., eraser) and cannabis-related items (e.g., lighter).
Locations(1)
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NCT07398443