Problematic cannabis use Mental and Behavioural Disorders Cannabis addiction
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Aged between 14 and 21 years, either sex 2. Cannabis consumed is deemed problematic by the young cannabis user or significant persons in his or her context (e.g. parents, teachers) 3. Participant's willingness to at least think over previous consumption patterns and to participate at a group dealing with the topic 4. Informed consent of participants and in the case of underage participants the informed consent of a parent or official guardian
Exclusion criteria
Exclusion criteria: Acute symptoms of psychosis or suicidality. These exclusion criteria were checked via standardised screening questions at the beginning of the face-to-face take-in talks at the respective cooperation partner's institutions.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1. Cannabis use in the past 30 days 2. In case of ongoing cannabis use: approximate weight of used cannabis on a day with mean cannabis use Measured at t0, t1 and t2 | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Motivation to change existing cannabis use 2. Cannabis abstinence-related self-efficacy 3. Psychosocial adjustment 4. Behaviour in the face of peer pressure with regard to cannabis use Measured at t0, t1 and t2 | — |
Countries
Germany