Table 3.

Overview of contents and therapeutic approaches in the modules.

Module	Contents	Therapeutic approach
Module 1: Introduction	General overview Introduction of fictional companions Reflection on personal cannabis consumption	Based on motivational interviewing (MI) techniques [30]
Module 2 : Identifying risk situations	Identifying personal high-risk situations Recognizing seemingly irrelevant but triggering decisions	Cognitive behavioral therapy (CBT) approach to relapse prevention [31]
Module 3: Working on needs	Strengthening social contacts Decreasing excessive ruminations Developing healthier sleeping habits	Behavioral activation approach [32]
Module 4: Craving	Concept of craving Ways to deal with feelings of craving	Based on CBT [33]
Module 5: Dealing with relapses	Relapse prevention Dealing with relapses	CBT approach to relapse prevention [31]
Module 6 : Working on problems	Relationships between consumption, problems, and depressive symptoms Skills to deal with solvable and unsolvable problems	Social problem-solving approach [34]
Module 7: Saying "no"; refusal skills	Strengthening refusal skills for use in high-risk situations	Based on CBT [33]
Module 8: Preserving achievements	Review of program List of five personalized points to help secure achievements after the program is complete	Based on MI techniques [30]