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Home Instruction for Parents of Preschool Youngsters (HIPPY)®

Meets DHHS criteria for an evidenced based model

Last Updated: May 2013

In Brief for Positive Parenting Practices Outcomes

Impact Studies Rated High


Necoechea, D. M. (2007). Children at-risk for poor school readiness: The effect of an early intervention home visiting program on children and parents. Dissertation Abstracts International Section A: Humanities and Social Sciences, 68 (6-A), 2311.  (Dissertation Abstract: 2007-99230-512)
Show Study Effects Details
Outcome Effect Sample Timing of Follow-Up Sample Size Program Group Comparison Group Mean Difference or Odds Ratio
Statistical Significance
Effect Size
Outcome Type
Parent-Home Survey Favorable Full sample 16 weeks 51 mothers Mean = 70.58
SD = 15.07
Mean = 61.64
SD = 11.45
MD = 8.94 Statistically significant,
p = 0.00
Study-reported = 0.87 Secondary
Show Study Outcome Measure Summary
Outcome Description of Measure Data Collection Method Properties of the Outcome Measure Outcome Type
Parent-Home Survey A researcher-developed instrument that assessed parents’ use of home-based supports for children like oral language-based activities, print-based activities, literacy exposure, and parent book reading. The responses were used to generate an index of parent involvement. Parent/caregiver report Cronbach’s α = 0.71 Secondary
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Impact Studies Rated Moderate


Baker, A. J. L., & Piotrkowski, C. S. (1996). Parents and children through the school years: The effects of the home instruction program for preschool youngsters. New York: National Council of Jewish Women, Center for the Child.
Additional Source:

Baker, A. J. L., Piotrkowski, C. S., & Brooks-Gunn, J. (1998). The effects of the Home Instruction Program for Preschool  Youngsters on children’s school performance at the end of the program and one year later. Early Childhood Research Quarterly, 13(4), 571–586.

Show Study Effects Details
Outcome Effect Sample Timing of Follow-Up Sample Size Program Group Comparison Group Mean Difference or Odds Ratio
Statistical Significance
Effect Size
Outcome Type
Percentage of days attended (nonparametric test) Favorable City in Arkansas (site A), Cohort I End of program 78 families Median = 96% Median = 94% Not available Statistically significant,
p = 0.054
Study-reported = 0.39 Primary
Percentage of days attended (nonparametric test) No Effect City in Arkansas (site A), Cohort I 1-year follow-up 86 families Median = 97% Median = 97% Not available Not statistically significant,
p = 0.44
Study-reported = 0.17 Primary
Percentage of days attended (nonparametric test) No Effect City in New York (site B), Cohort I End of program 56 families Median = 92% Median = 92% Not available Not statistically significant,
p = 0.71
Study-reported = 0.10 Primary
Percentage of days attended (nonparametric test) No Effect City in New York (site B), Cohort II End of program 97 families Median = 88% Median = 90% Not available Not statistically significant,
p = 0.68
Study-reported = 0.08 Primary
Percentage of days attended (nonparametric test) No Effect City in New York (site B), Cohort II 1-year follow-up 91 families Median = 93.5% Median = 93% Not available Not statistically significant,
p = 0.91
Study-reported = 0.02 Primary
Percentage of days attended (parametric test) No Effect City in New York (site B), Cohort II 1-year follow-up 91 families Not available Not available Not available Not statistically significant,
p = 0.87
Study-reported = 0.04 Primary
Percentage of days attended (parametric test) No Effect City in New York (site B), Cohort II End of program 97 families Not available Not available Not available Not statistically significant,
p = 0.75
Study-reported = 0.07 Primary
Percentage of days attended (parametric test) No Effect City in New York (site B)Cohort I End of program 56 families Not available Not available Not available Not statistically significant,
p = 0.62
Study-reported = 0.15 Primary
Percentage of days attended (parametric test) No Effect City in Arkansas (site A), Cohort I 1-year follow-up 86 families Not available Not available Not available Not statistically significant,
p = 0.33
Study-reported = 0.23 Primary
Percentage of days attended (parametric test) No Effect City in Arkansas (site A), Cohort I End of program 78 families Adjusted mean = 94.58% Adjusted mean = 93.72% MD = 0.86 Not statistically significant,
p = 0.44
Study-reported = 0.21 Primary
Show Study Outcome Measure Summary
Outcome Description of Measure Data Collection Method Properties of the Outcome Measure Outcome Type
Percentage of days attended Percentage of total school days the child attended Review of school records Not applicable Primary
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