[Home-Based Treatment of Multi-Problem Families (MPF): State of Research and New Results]

This article summarizes four studies of process and outcome research on family outreach therapy (ATF) with multi-problem families (MPF). We examined the relationship between different "patterns of of collaboration" and outcome variables in the treatment of MPF. Furthermore, we examined the relationship between childhood adversity factors and protective factors for the development of child psychiatric symptoms, and evaluated catamnesis data (follow-up 3 years). The paper summarizes four naturalistic studies of pre and post values and follow-up data in children aged 4-18 years, participating in an integrative, structural family therapy with (X = 115 sessions in 28.8 months, SD = 19.2). The data n = 1,031 show large effect sizes (ES) (d) (thirteen parameters, mean = 1.04, range 0.34 - 2.18). The outcome values correlate most strongly with the pattern "Improving Alliance", i. e. the improvement of the working alliance in the pre-post comparison (d = 0.64). Empirical studies on childhood adversity and protective factors showed significantly higher stress factors and significantly fewer protective factors in children from MPF compared to the non-clinical sample (95.7 % of children from MPF had a psychopathological diagnosis). The follow-up data showed stable treatment effects (three years of follow-up).The empirical research on the treatment of MPF requires further empirical studies in the sense of the treatment aptitude research on the question "what works for whom?".