About this trial
This preregistration documents an experiment examining the effects of acute stress and social context on alcohol-related decision-making. The study uses a 2x2 factorial design (stress vs. control × social vs. alone) with dyadic recruitment.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Drinking alcohol at least once a week
Consuming 4 (female) or 5 (male) drinks in one occasion at least once a month
Disqualifiers
Currently pregnant or trying to become pregnant
Past or current treatment for alcohol use
Past or current medical condition that contraindicates alcohol use
Past or current reaction to alcohol that contraindicates alcohol use
Trial design
Factorial
Treatments tested in this trial
Stress
Other interventionParticipants randomly assigned to the stress condition will undergo the standard protocol of the Trier Social Stress Test. Participants randomly assigned to the control condition will undergo a validated, non-stressful control procedure mirroring the TSST.
Social Context
Other interventionParticipants randomly assigned to the social condition will make decisions about consuming alcohol with a known peer. Participants randomly assigned to the control condition will make decisions about consuming alcohol alone.
Treatment groups
Trial outcomes
Primary outcomes
Proportion of choices for alcoholic over non-alcoholic drinks.
Each participant will complete a two alternative forced-choice task in which they make repeated decisions between alcoholic and non-alcoholic drinks.
Sponsors and contacts
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University of Washington
Lead sponsor
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
Collaborator