Nievar, A. M., Jacobson, A., Chen, Q., Johnson, U., & Dier, S. (2011). Impact of HIPPY on home learning environments of Latino families. Early Childhood Research Quarterly, 26(3), 268-277. Model(s): Home Instruction for Parents of Preschool Youngsters (HIPPY)® Low rating Study reviewed under: Handbook of Procedures and Standards, Version 1