The PROblem Gambling RESearch Study (PROGRESS) research protocol: a pragmatic randomised controlled trial of psychological interventions for problem gambling.
Bottom Line: Previous research evaluating the effectiveness of psychological interventions for the treatment of problem gambling has been compromised by methodological limitations, including small sample sizes and the use of waitlist control groups.Multilevel mixed modelling will be used to examine changes in the primary outcome measures: gambling symptom severity, using the Gambling Symptom Assessment Scale, and gambling behaviours (frequency, time and expenditure).This study was approved by the Victorian Department of Justice, Monash University and the University of Melbourne Human Research Ethics Committees.
Affiliation: Primary Care Research Unit, School of Primary Health Care, Monash University, Notting Hill, Victoria, Australia.Show MeSH
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Mentions: During the screening process, all individuals were informed that additional, in-depth interviews with a subgroup of participants would be conducted. From those that indicated interest in participating in the additional qualitative interviews, a sampling matrix was constructed to recruit a representative sample of the larger RCT according to treatment arm, age, sex and problem gambling severity (using the Problem Gambling Severity Index (PGSI)). All participants signed a separate consent form for these qualitative interviews. See figure 2 for the sampling matrix.
Affiliation: Primary Care Research Unit, School of Primary Health Care, Monash University, Notting Hill, Victoria, Australia.