title: Meta-analysis of the effects of MI training on clinicians' behavior.
abstract: MI-based interventions are widely used with a number of different clinical populations and their efficacy has been well established. However, the clinicians' training has not traditionally been the focus of empirical investigations. We conducted a meta-analytic review of clinicians' MI-training and MI-skills findings. Fifteen studies were included, involving 715 clinicians. Pre-post training effect sizes were calculated (13 studies) as well as group contrast effect sizes (7 studies). Pre-post training comparisons showed medium to large ES of MI training, which are maintained over a short period of time. When compared to a control group, our results also suggested higher MI proficiency in the professionals trained in MI than in nontrained ones (medium ES). However, this estimate of ES may be affected by a publication bias and therefore, should be considered with caution. Methodological limitations and potential sources of heterogeneity of the studies included in this meta-analysis are discussed.
authors.affiliation: Institute of Psychotherapy, Department of Psychiatry, University Hospital Center and University of Lausanne, Lausanne, Switzerland. Yves.deRoten@chuv.ch
authors.forename: Yves
authors.initials: Y
authors.lastname: de Roten
authors.forename: Grégoire
authors.initials: G
authors.lastname: Zimmermann
authors.forename: Diana
authors.initials: D
authors.lastname: Ortega
authors.forename: Jean-Nicolas
authors.initials: JN
authors.lastname: Despland
mesh_terms: D002983:Clinical Competence; D006282:Health Personnel / Q000193:education* / Q000592:standards; D006801:Humans; D062405:Motivational Interviewing / Q000379:methods*; D017594:Publication Bias; D012107:Research Design; D013997:Time Factors