A test of the validity of the motivational interviewing treatment integrity code

TitleA test of the validity of the motivational interviewing treatment integrity code
Publication TypeJournal Article
Year of Publication2008
AuthorsForsberg, L, Berman, AH, Källmén, H, Hermansson, U, Helgason, AR
JournalCognitive Behaviour Therapy
PublisherTaylor & Francis
Place PublishedUnited Kingdom
Publication Languageeng
ISBN Number1650-60731651-2316
Accession Number2008-10867-004. First Author & Affiliation: Forsberg, Lars
Keywordsadherence assessment, Counseling, motivational interviewing, Motivational Interviewing Treatment Integrity Code, quality control, Test Validity

To evaluate the Swedish version of the Motivational Interviewing Treatment Code (MITI), MITI coding was applied to tape-recorded counseling sessions. Construct validity was assessed using factor analysis on 120 MITI-coded sessions. Discriminant validity was assessed by comparing MITI coding of motivational interviewing (MI) sessions with information- and advice-giving sessions as well as by comparing MI-trained practitioners with untrained practitioners. A principal-axis factoring analysis yielded some evidence for MITI construct validity. MITI differentiated between practitioners with different levels of MI training as well as between MI practitioners and advice-giving counselors, thus supporting discriminant validity. MITI may be used as a training tool together with supervision to confirm and enhance MI practice in clinical settings. MITI can also serve as a tool for evaluating MI integrity in clinical research. (PsycINFO Database Record (c) 2010 APA, all rights reserved) (journal abstract)

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