From: Evaluating the efficacy of a web-based self-help intervention with and without chat counseling in reducing the cocaine use of problematic cocaine users: the study protocol of a pragmatic three-arm randomized controlled trial
Assessments/instruments
Baseline
6 weeks
6-month follow-up
Socio-demographics
x
SDS
Quantity of cocaine use1)
Days of cocaine use over past 30 days
FDA
MHI-5
SSQ-6
WAI-SR2)
CSQ-43)