Black, M. M., & Powell, D. (2005). Year One HIPPY AmeriCorps evaluation: Parent involvement in literacy activities and children’s receptive vocabulary development. Tampa, FL: University of South Florida, Department of Child and Family Studies. Model(s): Home Instruction for Parents of Preschool Youngsters (HIPPY)® Does not pass screens Screening conclusion: Ineligible study design Study reviewed under: Handbook of Procedures and Standards, Version 1