Personalized Feedback
A report comparing the participant's cannabis use to peer usage, and summarizing problems experienced and risk associated with future use.
Loading study record…
Loading study record…
The purpose of this project is to determine whether participants who receive a personalized feedback report and educational materials about risky cannabis use will be less likely to report risky cannabis use at follow-up compared to participants who only received educational materials.
Locally preserved from ClinicalTrials.govOpen ClinicalTrials.govlast source update 2020-10-27
What this record can show
This locally preserved record separates the registered protocol from source-reported registry results. Neither is a treatment recommendation.
Registry facts
This project aims to reduce risky cannabis use among those with less severe cannabis use, most of whom will never seek formal treatment. All of the participants will receive educational material regarding risky cannabis use and its prevention. Half of the participants will also be assigned by chance to receive a personalized feedback report. The investigators hypothesize that: 1. Participants who receive the full personalized feedback intervention will be less likely to report risky cannabis use at 3- and 6-month follow-ups compared to participants who receive educational materials only (Primary Hypothesis). 2. Participants who receive the full personalized feedback intervention will report greater reductions in their perceptions of how much others use cannabis at a 3-month follow-up compared to participants who receive educational materials only. 3. Reductions in perceptions of how much others use cannabis at 3-month follow-up will be positively associated with reduction in the participant's risky cannabis use at 6-month follow-up. A 2-arm parallel group randomized controlled trial will be conducted to test these hypotheses with follow-ups occurring at 3 and 6 months after randomization. Online media advertisements will be used to recruit people currently using cannabis. The advertisements will be placed across Canada using locations found successful in previous trials to rapidly recruit participants (e.g. Google AdWords).
Linked local records
Local links use governed condition terms or exact source-reported intervention names. They are navigation candidates, not efficacy claims.
Research network
Interventions
A report comparing the participant's cannabis use to peer usage, and summarizing problems experienced and risk associated with future use.
Canada's Lower-Risk Cannabis Use Guidelines prepared by the Centre for Addiction and Mental Health which outlines methods to help reduce health risks associated with cannabis use.
Eligibility
primary outcomes
Time frame: 3 and 6 months
Change in the number of days participant used cannabis in the past 30-days from baseline
secondary outcomes
Time frame: Baseline, 3 and 6 months
Change in cannabis subscale scores from baseline. Scores are calculated as a sum of six items and totals can range from 0 to 39 with higher scores indicating greater risk.
Time frame: Baseline, 3 months
Change in participant's perceptions of how much their peers (same age and gender) use cannabis. Measured as a percentage of peers that do not use cannabis (%) and a 5-points Likert scale, 0 "Never" to 5 "Daily or Almost daily" of frequency of peer use
Publications