Publication year: 2011
Source: Addictive Behaviors, In Press, Accepted Manuscript, Available online 11 March 2011
Jim, McCambridge , Maria, Day , Bonnita A., Thomas , John, Strang
This study tested whether differences in cannabis cessation 3months after a single session of Motivational Interviewing (MI) may be attributable to fidelity to MI. All audio-recordings with necessary 3-month follow-up data (n=75) delivered by four individual practitioners within a randomised controlled trial (RCT) were used. Participants were weekly or more frequent cannabis users aged 16–19years old in Further Education colleges. All tapes were coded with the Motivational Interviewing Treatment Integrity (MITI) scale Version 2 by 2 coders. Satisfactory inter-rater reliability was achieved. Differences between and within practitioners in fidelity to MI were consistently detected. After controlling for practitioner effects, Motivational…