title: Development and reliability of a Motivational Interviewing Scenarios Tool for Eating Disorders (MIST-ED) using a skills-based intervention among caregivers.
abstract: The aims of this study were to develop an eating disorder scenarios tool to assess the motivational interviewing (MI) skills of caregivers and evaluate the coding reliability of the instrument, and to test the sensitivity to change through a pre/post/follow-up design. The resulting Motivational Interview Scenarios Tool for Eating Disorders (MIST-ED) was administered to caregivers (n = 66) who were asked to provide oral and written responses before and after a skills-based intervention, and at a 3-month follow-up. Raters achieved excellent inter-rater reliability (intra-class correlations of 91.8% on MI adherent and 86.1% for MI non-adherent statements for written scenarios and 89.2%, and 85.3% for oral scenarios). Following the intervention, MI adherent statements increased (baseline = 9.4%, post = 61.5% and follow-up 47.2%) and non-MI adherent statements decreased (baseline = 90.6%, post = 38.5% and follow-up = 52.8%). This instrument can be used as a simple method to measure the acquisition of MI skills to improve coping and both response methods are adequate. The tool shows good sensitivity to improved skills.
authors.affiliation: Department of Biological and Health Psychology, School of Psychology, Autonomous University of Madrid, Madrid, Spain. Electronic address: anarosa.sepulveda@uam.es.
authors.forename: Ana R
authors.initials: AR
authors.lastname: Sepulveda
authors.forename: Caroline
authors.initials: C
authors.lastname: Wise
authors.forename: Maria
authors.initials: M
authors.lastname: Zabala
authors.forename: Gill
authors.initials: G
authors.lastname: Todd
authors.forename: Janet
authors.initials: J
authors.lastname: Treasure
mesh_terms: D017028:Caregivers / Q000193:education*; D002983:Clinical Competence / Q000706:statistics & numerical data*; D001068:Feeding and Eating Disorders / Q000628:therapy*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D062405:Motivational Interviewing; D015203:Reproducibility of Results
keywords: Caregivers; Eating disorder; Intervention; Motivational interviewing skills; Reliability; Scenarios tool