Probst, P., Glen, I., Spreitz, J., & Jung, F. (2010). Evaluative study on the social validity of the developmental disability parent training program Stepping Stones Triple P. Life Span and Disability, 13(1), 43-70. Model(s): Triple P - Home Visiting: Standard Stepping Stones Does not pass screens Screening conclusion: Ineligible study design Study reviewed under: Handbook of Procedures and Standards, Version 1