A Special Issue of the European Journal of Developmental Psychology. The objective of this special issue is to illustrate some of the theoretical, methodological and practical aspects involved in the evidence-based evaluation of family educational programs aimed at supporting positive parenting. The main novelty that this special issue brings is the compilation of studies involving experiences of parent education programs from several countries. The objectives of the papers are to develop theoretically based prevention programs, to evaluate their effectiveness according to standards of evidence, and to examine factors that influence