Testing the Efficacy of an Online Alcohol Intervention

Digital Therapy: Evaluation of the Fully Automated Alcohol Intervention "Balance".

The purpose of this study is to test whether an online multi session alcohol intervention improves treatment effect compared to single session screening with feedback only.

All participants in the trial received a single session screening procedure including individualized normative feedback (usual care). Additionally, half of the participants received a simple online booklet about the effects of alcohol. The other half received an online multi session follow up program.

Aims: Test whether a multi session alcohol intervention improves treatment effect (i.e., reduced consumption of alcohol) compared to single session screening with feedback.

Design: Randomized controlled trial (RCT). Subjects in both conditions receives a single session screening procedure including individualized normative feedback. The control group receives an online booklet about the effects of alcohol. The treatment group receives the multi session follow up program "Balance" .

Setting: Online study in Norway. Participants: At-risk drinkers is recruited through internet advertisements and randomly assigned to one of two conditions.

Inclusion Criteria:

• hazardous or harmful drinking (i.e., a FAST-score of 3 or more)

Exclusion Criteria:

• underage (<18)
• not provided a valid e-mail address
• not provided a valid (Norwegian) mobile phone number