Objective: The purpose of this study was to review empirical evidence of the effects of placement in group care compared to other interventions. Method: Two-group empirical studies were identified and effect sizes for all reported outcomes were calculated. Results: Nineteen two-group studies were found that compared group care with family foster care, treatment foster care, no placement, and different group care models. Most effects were small to moderate, with strongest effects for shorter lengths of stay for family-centered group care models and decreased delinquency for Multidimensional Treatment Foster Care (MTFC) compared to group care. Conclusion: Based on the limited number of two-group studies of varying quality, outcomes of group care are often worse than alternative interventions. However, some group care models seem more promising than others.
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