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Children’s disruptive behavior problems place children at high risk for oppositional defiant disorder and conduct disorder, and carry a high burden for individuals and society. Policy makers and service providers aiming to reduce children’s disruptive behavior problems must often choose between importing an intervention developed abroad or instead developing or using a “homegrown” (i.e., local) intervention. No comprehensive comparison of these interventions exists.

We performed a multilevel meta-regression of 129 randomized trials (374 effect sizes) of transported and homegrown parenting interventions. We identified trials by searching the included trials lists of systematic reviews, found through searches in 6 databases (e.g., MEDLINE, EMBASE). Trials that had not yet been reviewed were found by searching the same databases. Primary outcome was the mean difference in effectiveness …