Problematic alcohol use (Problematisch alcoholgebruik)
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Participants are included if they: 1. Are 18-65 years old; 2. Have an AUDIT score of 8 or above; 3. Drank ≥15 (women) or ≥21 (men) alcoholic drinks per week on average in the past 14 days; 4. Have (almost) daily internet access; 5. Do not currently receive professional help for alcohol use problems.
Exclusion criteria
Exclusion criteria: Participants who currently receive professional help for alcohol use problems are excluded.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The main outcome measure is change in the number of drinks consumed in the past 14 days, as assessed at baseline and three months after the intervention, using the TLFB method. It is expected that, for each of the CBM paradigms, participants in the intervention conditions will show a greater decrease in weekly alcohol use than participants in the control conditions. | — |
Secondary
| Measure | Time frame |
|---|---|
| The change in automatic cognitive biases will be assessed at the pre and post-intervention measurement as a manipulation check, using both the trained measures of attentional bias, approach bias and alcohol/go bias, as well as ‘untrained’ tasks to test generalization effects: the emotional Stroop task (as a measure of attentional bias) and the Brief Implicit Association Task to measure approach associations and positive (valence) associations with alcohol. Secondary outcome measures include the number of drinks consumed in the past 14 days, the percentage of participants drinking within the limits for sensible drinking (set by the British Medical Association: a maximum of 21 standard units of alcohol per week for men, and 14 units a week for women) and binge drinking, all measured with the TLFB at the pre and post-measurements, and the 3, 6 and 12 month follow-ups. Other secondary outcome measures (assessed at each measurement point) are: Alcohol-related problems ( AUDIT), Craving ( Desires for Alcohol Questionnaire), and Self-efficacy Brief Situational Confidence Questionnaire). Quality of life (EQ-5D) and the economic costs stemming from health care uptake and productivity losses associated with problematic alcohol use ( Trimbos/iMTA Questionnaire for Costs associated with Psychiatric illness, TiC-P) will be assessed at baseline and at the 3, 6, and 12 month follow-up. | — |
Contacts
ADAPT lab, Developmental psychology University of Amsterdam Weesperplein 4 (room 6.22)