Journal
PSYCHIATRY RESEARCH
Volume 206, Issue 2-3, Pages 293-301Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.psychres.2012.11.026
Keywords
Psychotherapy; Adverse effects; Rating scales; Treatment; Outcome
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While psychotherapies are of established value, they may, as active treatments, risk adverse outcomes. As there is no validated measure of potentially negative psychotherapeutic ingredients, we sought to develop such a measure for use in psychotherapy evaluation studies. Based on a review of the literature, a 103-item experiential measure was derived. Psychometric properties and scale score correlates were examined in a sample of more than 700 respondents. Principal component analyses revealed a five-factor solution, explaining 53.4% of the variance; namely 'Negative Therapist', 'Pre-occupying Therapy', 'Beneficial Therapy', 'Idealization of Therapist' and 'Passive Therapist' constructs. Derived factors had high internal consistency, and scale scores were correlated with a number of clinically relevant demographic and treatment characteristics. An independent study established high test-retest reliability for the measure. Assessment of any adverse effects of psychotherapy is of clinical and research significance. We report the development of a measure that should allow the impact of such effects to be quantified in treatment studies, and especially in apportioning the contribution of such non-specific therapeutic effects. (C) 2012 Elsevier Ireland Ltd. All rights reserved.
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