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Table 1 Measures for young cannabis users

From: "CAN Stop" - Implementation and evaluation of a secondary group prevention for adolescent and young adult cannabis users in various contexts - study protocol

Target variable

Measure

Point of measurement

Sociodemographics Living situation Social network Problems with school, police, debts... Education Prior counselling and therapies

 

pre, follow-up

Screening for acute psychosis

Subscale of the Diagnostisches Interview psychischer Störungen (DIPS; Diagnostic Interview of psychiatric disorders) [26]

pre

Substance use history

Following the assessment standards III of the DG-Sucht (German Society for Addiction Research and Therapy)

pre, post, follow-up

Severity of dependence

Severity of dependence scale (SDS) [27]

pre, post, follow-up

Psychosocial adjustment

Youth self report (participants aged 14-17) [28] Young adult self report (Participants aged 18-21) [29]

pre, post, follow-up

Expected positive and negative effects of cannabis use

Comprehensive Cannabis Expectancy Questionnaire (CCEQ) [30]

pre, post, follow-up

Relationship to friends and peers

Questionnaire for health-related quality of life (Kiddo-KINDL revised, subscale "friends") [31]

pre, post, follow-up

Family relationships

Familienbogen/Selbstbeurteilungsbogen (family inventory, self-rating) [32]

pre

Motivation for change in cannabis use

Fragebogen zur Erfassung der Veränderungsbereitschaft (FEVER; Questionnaire to protocol the willingness for change) [33, 34]

pre, post, follow-up

Personal goals with regard to changes in substance use

Zielskala [35]

pre, post, follow-up

Self-efficacy with regard to cannabis abstinence or limited cannabis use

Heidelberger Skalen zur Abstinenz-/Kontrollzuversicht (HEISA-16/HEIS-KOTZ-12; Heidelberg scales of confidence regarding abstinence/controlled use) [35]

pre, post, follow-up

Satisfaction with the training

Fragebogen zur Beurteilung der Behandlung, Version Patient (FBB-P; Questionnaire for the satisfaction with treatment, patient version) with minor adaptations [36]

post

Peer resistance regarding cannabis use

own development

pre, post, follow-up