Differential effectiveness of group,individual, and conjoint treatments: An archival analysis of OQ-45 change trajectories |
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| Authors: | Gary M. Burlingame Robert Gleave Davey Erekson Philip L. Nelson Joseph Olsen Steve Thayer |
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| Affiliation: | 1. Department of Psychology, Brigham Young University, Provo, UT, USA;2. Department of Counseling Psychology and Special Education, Brigham Young University, Provo, UT, USA;3. College of Family, Home and Social Science, Brigham Young University, Provo, UT, USA |
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| Abstract: | Objective: While empirically-supported treatment (EST) choices are continually expanding, choices regarding formats for delivery (individual only, group only, or conjoint [simultaneous individual &; group]) are often determined by agency resources or clinician preference. Studies comparing individual and group formats have produced mixed results, while recent meta-analytic reviews support format equivalence. Method: We employed a multilevel model to test for outcome differences using the OQ-45 on an outpatient archival data set of clients receiving individual-only (n?=?11,764), group-only (n?=?152) or conjoint (n?=?1557). Results: Individual and group outcomes were equivalent with some analyses showing conjoint trailing. Moderators of change included initial distress, treatment duration, intra-group dependency, and format. Conclusions: Results support meta-analytic findings of format equivalence in a naturalistic setting for group and individual. Referral practices and future results are discussed. |
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| Keywords: | group psychotherapy mental health services research outcome research |
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