%0 Journal Article %T Preventing Child Behavior Problems in the Erlangen-Nuremberg Development and Prevention Study: Results from Preschool to Secondary School Age %A Friedrich L£¿sel %A Mark Stemmler %J International Journal of Conflict and Violence %D 2012 %I University of Bielefeld %X A brief overview of the prevention part of the long-term Erlangen-Nuremberg Development and Prevention Study, which combines a prospective longitudinal and experimental design. Findings up to five years after intervention are reported. From a sample of 609 families with kindergarten children, subgroups participated in the universal prevention program EFFEKT (child social skills training, a parent training and a combination of both) or were assigned to equivalent control groups. The short-term evaluation showed significant effects in mediating constructs (social problem solving and parenting behavior) and in educators¡¯ratings of children¡¯s social behavior. In a follow-up after two to three years, school report cards showed fewer children with multiple behavior problems. In a further follow up after four to five years program children reported fewer externalizing and internalizing problems than the control group. There were no significant effects in the mothers¡¯ reports on their children¡¯s behavior. Most significant effect sizes ranged between d = 0.20 and d = 0.40. The findings suggest various positive long-term effects of the intervention. However, one need to be cautious with regard to over-generalizing the positive findings, because effectsizes vary over time and the positive findings could not be replicated in all investigated variables. %K Universal prevention program %K long-term evaluation %U http://ijcv.org/index.php/ijcv/article/view/278/pdf_70