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Zero Irresponsible Drinking
Last registered on September 24, 2019

Pre-Trial

Trial Information
General Information
Title
Zero Irresponsible Drinking
RCT ID
AEARCTR-0004703
Initial registration date
September 24, 2019
Last updated
September 24, 2019 11:40 AM EDT
Location(s)

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Primary Investigator
Affiliation
Danish Center for Social Science Research
Other Primary Investigator(s)
Additional Trial Information
Status
In development
Start date
2019-09-13
End date
2020-07-05
Secondary IDs
Abstract
Harmful and irresponsible use of alcohol is a major risk factor for many diseases and injury conditions and is associated with both short- and long-term social consequences for young people. Peers, family members, authorities, and the alcohol industry influence the drinking culture and can play important roles in changing unhealthy irresponsible drinking behaviors. In this project, we design and evaluate an intervention aimed at changing the drinking culture and reducing irresponsible drinking among university students in Denmark. We conduct a randomized controlled trial at university level inviting students to answering a questionnaire including information on health behaviors before and after the intervention. The intervention has multiple components including information on behavior substitution, problem solving, and using a credible source; components that have shown promising results in previous studies (e.g., Kaner et al., 2017 and Norman et al., 2018).
External Link(s)
Registration Citation
Citation
Greve, Jane. 2019. "Zero Irresponsible Drinking." AEA RCT Registry. September 24. https://doi.org/10.1257/rct.4703-1.0.
Experimental Details
Interventions
Intervention(s)
Intervention Start Date
2019-09-27
Intervention End Date
2019-11-04
Primary Outcomes
Primary Outcomes (end points)
Changes in drinking behavior measured by the AUDIT questionnaire.
B) Changes in drinking culture: 1) Self-reported information if they have been to a party without drinking 2) Self-reported information about the difficulties in saying no to alcohol 3) Self-reported information on drinks at the last Student bar event 4) Self-reported questions on non-alcoholic drinks at the last Student bar event.
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
After answering the baseline questionnaire students are randomly allocated to either a treatment or a control group.
During the intervention period the treatment group will receive SMS’es and emails consisting of information aimed at affecting individual drinking behavior (see, e.g., Norman et al., 2018).
Experimental Design Details
Not available
Randomization Method
randomization is done by an computer.
Randomization Unit
Individuals
Was the treatment clustered?
No
Experiment Characteristics
Sample size: planned number of clusters
We do not cluster.
Sample size: planned number of observations
500 students
Sample size (or number of clusters) by treatment arms
250 in the control group and 250 the treatment group.
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
Institutional Review Board of the Danish Centre for Social Science Research
IRB Approval Date
2019-09-16
IRB Approval Number
N/A