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Systemic therapy is a frequently used form of psychotherapy for the treatment of mental disorders in children and adolescents. The present study reports the results of the first meta-analysis on the effects of systemic treatment of mental disorders and behavior problems in children and adolescents. Based on systematic search in electronic databases (PsycINFO, Psyndex, PubMed, ISI Web of Knowledge, CINAHL),k = 56 randomized, controlled trials met the inclusion criteria. We computed a random-effects meta-analysis. Systemic therapy showed small-to-medium effects in comparison with an untreated control group (posttest:k = 7,g = .59 standard deviation units, follow-up:k = 2,g = .27) and alternative treatment (posttest:k = 43,g = .32, follow-up:k = 38,g = .28). At follow-up, longer interventions produced larger effect sizes. No other moderator effects were identified. Although available randomized, controlled trials show convincing results, their effects refer to a limited number of systemic approaches and mental disorders, and also pertain to adolescents rather than younger children. Thus, more research is needed before more general conclusions about the effects of systemic therapy can be drawn. [ABSTRACT FROM PUBLISHER]

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Objective. The present meta-analysis examines the relation between coparenting and child adjustment. Design. The authors integrate 59 studies and differentiate among cooperation, agreement, conflict, and triangulation as dimensions of coparenting. Further, they differentiate internalizing and externalizing symptoms, social functioning of children, and attachment as outcomes. Results. Effect sizes were generally small and, to some extent, moderated by age of the children, percentage of girls in the sample, clinical background of the sample, mono-informant bias, annual family income, and percentage of separated parents. Effect sizes remained significant after controlling for individual parenting or marital quality. Coparenting predicted change in child adjustment. Conclusions. Coparenting is important for the psychological adjustment of children. Research and practice should pay further regard to this construct. [ABSTRACT FROM AUTHOR]