Nowak, C., & Heinrichs, N. (2008). A comprehensive meta-analysis of Triple P-Positive Parenting Program using hierarchical linear modeling: Effectiveness and moderating variables. Clinical Child and Family Psychology Review, 11(3), 114-144. Model(s): Triple P - Positive Parenting Program®—Variants suitable for home visiting Does not pass screens Screening conclusion: Ineligible study design Study reviewed under: Handbook of Procedures and Standards, Version 1