Fidelity to Motivational Interviewing and subsequent cannabis cessation among adolescents.

This study tested whether differences in cannabis cessation 3 months 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 16-19 years old in Further Education colleges.

Depression and anxiety related subtypes in Parkinson's disease.

Background: Depression and anxiety are common in Parkinson's disease (PD) and although clinically important remain poorly understood and managed. To date, research has tended to treat depression and anxiety as distinct phenomena. There is growing evidence for heterogeneity in PD in the motor and cognitive domains, with implications for pathophysiology and outcome.

Short forms of the AUDIT in a Web-based study of young drinkers.

Introduction: The Alcohol Use Disorders Identification Test (AUDIT) is under-studied among young drinkers, as are the contributions of individual items to total AUDIT scores, and online performance of the existing briefer versions of this instrument.

Design And Methods: This study examined individual items of the AUDIT, and various combinations, including the existing briefer versions, in relation to total AUDIT scores in a Web-based study of young drinkers. A total of 167 young people aged 16-24 years old who had consumed any alcohol within the previous 7 days were recruited by both offline and online methods.

Comparative psychometric study of a range of hazardous drinking measures administered online in a youth population.

Aims: To compare the psychometric performance of a range of existing alcohol measures when data are collected online with young people, and thereby to gain insights into the reliability and validity of this mode of data collection.

Method: One hundred and sixty-seven U.K.