Factorial structure of the Therapist Adherence Measure-Revised (TAM-R) within multisystemic therapy

A. M. C. de Lange*, M. J. M. H. Delsing, R. H. J. Scholte, R. E. A. van der Rijken

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

The Therapist Adherence Measure (TAM-R) is a central assessment within the quality-assurance system of Multisystemic Therapy (MST). Studies into the validity and reliability of the TAM in the US have found varying numbers of latent factors. The current study aimed to reexamine its factor structure using two independent samples of families participating in MST in the Netherlands. The factor structure was explored using an Exploratory Factor Analysis (EFA) in Sample 1 (N = 580). This resulted in a two-factor solution. The factors were labeled “therapist adherence” and “client–therapist alliance.” Four cross-loading items were dropped. Reliability of the resulting factors was good. This two-factor model showed good model fit in a subsequent Confirmatory Factor Analysis (CFA) in Sample 2 (N = 723). The current finding of an alliance component corroborates previous studies and fits with the focus of the MST treatment model on creating engagement.
Original languageEnglish
Pages (from-to)427-431
JournalEuropean Journal of Psychological Assessment
Volume36
Issue number2
DOIs
Publication statusPublished - 2020

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