Parents as Teachers (PAT)® Meets HHS Criteria

Model effectiveness research report last updated: 2019

Effects shown in research

Family economic self-sufficiency

Findings rated high

Parents as Teachers (PAT)®
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Outcome measure Effect Follow-up timing Sample Sample size Intervention group Comparison group Group difference Effect size Statistical significance Notes
Any postsecondary education
FavorableUnfavorable or ambiguousNo Effect
2 year Northern California sample 363 mothers % = 27.00 % = 33.10 = -6.10 HomVEE calculated = -0.18 Not statistically significant, p ≥ 0.05
Any postsecondary education
FavorableUnfavorable or ambiguousNo Effect
3 year Northern California sample 354 mothers % = 29.30 % = 38.80 = -9.50 HomVEE calculated = -0.26 Not statistically significant, p ≥ 0.05
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In contrast to the study-reported results, HomVEE calculations showed this difference to be statistically significant (p ≤ 0.05). The HomVEE tests of statistical significance are based on the HomVEE calculated effect sizes, whereas authors may have used other techniques to determine statistical significance, such as regression models or analyses of variance (ANOVA).

Attending school in the past year
FavorableUnfavorable or ambiguousNo Effect
2 year Northern California sample 363 mothers % = 27.70 % = 30.70 = -3.00 HomVEE calculated = -0.09 Not statistically significant, p ≥ 0.05
Attending school in the past year
FavorableUnfavorable or ambiguousNo Effect
3 year Northern California sample 354 mothers % = 25.80 % = 23.50 = 3.30 HomVEE calculated = 0.08 Not statistically significant, p ≥ 0.05
Average highest grade level
FavorableUnfavorable or ambiguousNo Effect
2 year Northern California sample 363 mothers Mean = 10.50 Mean = 11.20 Mean difference = -0.70 Not available Not statistically significant, p ≥ 0.05
Average highest grade level
FavorableUnfavorable or ambiguousNo Effect
3 year Northern California sample 354 mothers Mean = 10.80 Mean = 11.60 Mean difference = -0.80 Not available Not statistically significant, p ≥ 0.05
High school graduate
FavorableUnfavorable or ambiguousNo Effect
2 year Northern California sample 363 mothers % = 23.20 % = 22.70 = 0.50 HomVEE calculated = 0.02 Not statistically significant, p ≥ 0.05
High school graduate
FavorableUnfavorable or ambiguousNo Effect
3 year Northern California sample 354 mothers % = 24.50 % = 20.40 = 4.10 HomVEE calculated = 0.14 Not statistically significant, p ≥ 0.05
Household income $10000 - $29999
FavorableUnfavorable or ambiguousNo Effect
2 year Northern California sample 366 mothers % = 57.90 % = 44.90 = 13.00 HomVEE calculated = 0.32 Not statistically significant, p ≥ 0.05
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In contrast to the study-reported results, HomVEE calculations showed this difference to be statistically significant (p ≤ 0.05). The HomVEE tests of statistical significance are based on the HomVEE calculated effect sizes, whereas authors may have used other techniques to determine statistical significance, such as regression models or analyses of variance (ANOVA).

Household income $10000 - $29999
FavorableUnfavorable or ambiguousNo Effect
3 year Northern California sample 354 mothers % = 55.30 = = 7.90 HomVEE calculated = 0.19 Not statistically significant, p ≥ 0.05
Household income $30000 or more
FavorableUnfavorable or ambiguousNo Effect
2 year Northern California sample 366 mothers % = 22.60 % = 33.60 = -11.00 HomVEE calculated = -0.33 Not statistically significant, p ≥ 0.05
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In contrast to the study-reported results, HomVEE calculations showed this difference to be statistically significant (p ≤ 0.05). The HomVEE tests of statistical significance are based on the HomVEE calculated effect sizes, whereas authors may have used other techniques to determine statistical significance, such as regression models or analyses of variance (ANOVA).

Household income $30000 or more
FavorableUnfavorable or ambiguousNo Effect
3 year Northern California sample 354 mothers % = 25.30 % = 36.80 = -11.50 HomVEE calculated = -0.33 Statistically significant,
p < 0.05
Household income less than $10000
FavorableUnfavorable or ambiguousNo Effect
2 year Northern California sample 366 mothers % = 19.50 % = 21.50 = -2.00 HomVEE calculated = -0.07 Not statistically significant, p ≥ 0.05
Household income less than $10000
FavorableUnfavorable or ambiguousNo Effect
3 year Northern California sample 354 mothers % = 19.30 % = 15.80 = 3.50 HomVEE calculated = 0.15 Not statistically significant, p ≥ 0.05
Household receiving AFDC
FavorableUnfavorable or ambiguousNo Effect
2 year Northern California sample 366 mothers % = 16.10 % = 22.20 = -6.10 HomVEE calculated = -0.24 Not statistically significant, p ≥ 0.05
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In contrast to the study-reported results, HomVEE calculations showed this difference to be statistically significant (p ≤ 0.05). The HomVEE tests of statistical significance are based on the HomVEE calculated effect sizes, whereas authors may have used other techniques to determine statistical significance, such as regression models or analyses of variance (ANOVA).

Household receiving AFDC
FavorableUnfavorable or ambiguousNo Effect
3 year Northern California sample 354 mothers % = 15.40 % = 17.90 = -2.50 HomVEE calculated = -0.11 Not statistically significant, p ≥ 0.05
Household receiving Medi-Cal
FavorableUnfavorable or ambiguousNo Effect
2 year Northern California sample 366 mothers % = 39.90 % = 45.10 = -5.20 HomVEE calculated = -0.13 Not statistically significant, p ≥ 0.05
Household receiving Medi-Cal
FavorableUnfavorable or ambiguousNo Effect
3 year Northern California sample 354 mothers % = 37.00 % = 36.40 = 0.60 HomVEE calculated = 0.02 Not statistically significant, p ≥ 0.05
Less than high school
FavorableUnfavorable or ambiguousNo Effect
2 year Northern California sample 363 mothers % = 49.80 % = 44.20 = 5.60 HomVEE calculated = 0.14 Not statistically significant, p ≥ 0.05
Less than high school
FavorableUnfavorable or ambiguousNo Effect
3 year Northern California sample 354 mothers % = 46.20 % = 40.80 = 5.40 HomVEE calculated = 0.13 Not statistically significant, p ≥ 0.05
Mother working/in job training
FavorableUnfavorable or ambiguousNo Effect
2 year Northern California sample 366 mothers % = 48.80 % = 36.20 = 12.60 HomVEE calculated = 0.31 Not statistically significant, p ≥ 0.05
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In contrast to the study-reported results, HomVEE calculations showed this difference to be statistically significant (p ≤ 0.05). The HomVEE tests of statistical significance are based on the HomVEE calculated effect sizes, whereas authors may have used other techniques to determine statistical significance, such as regression models or analyses of variance (ANOVA).

Mother working/in job training
FavorableUnfavorable or ambiguousNo Effect
3 year Northern California sample 354 mothers % = 55.40 % = 46.00 = 9.40 HomVEE calculated = 0.23 Not statistically significant, p ≥ 0.05
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In contrast to the study-reported results, HomVEE calculations showed this difference to be statistically significant (p ≤ 0.05). The HomVEE tests of statistical significance are based on the HomVEE calculated effect sizes, whereas authors may have used other techniques to determine statistical significance, such as regression models or analyses of variance (ANOVA).

Findings rated moderate

Parents as Teachers (PAT)®
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Outcome measure Effect Follow-up timing Sample Sample size Intervention group Comparison group Group difference Effect size Statistical significance
Change in AFDC Status
FavorableUnfavorable or ambiguousNo Effect
4-5 years Binghamton, NY 40 children Unadjusted mean = -0.10 Unadjusted mean = 0.20 Mean difference = -0.30 Not available Statistically significant, p < 0.05
Parents as Teachers (PAT)®
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Outcome measure Effect Follow-up timing Sample Sample size Intervention group Comparison group Group difference Effect size Statistical significance
Child covered by health insurance
FavorableUnfavorable or ambiguousNo Effect
2 year Three-site sample 265 children % = 79.80 % = 84.80 = -4.60 Study reported = -0.13 Not statistically significant, p ≥ 0.05
Parents as Teachers (PAT)®
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Outcome measure Effect Follow-up timing Sample Sample size Intervention group Comparison group Group difference Effect size Statistical significance
Receiving AFDC at assessment
FavorableUnfavorable or ambiguousNo Effect
1 year Teen mothers sample 234 mothers % = 50.40 % = 58.00 = -7.60 HomVEE calculated = -0.19 Not statistically significant, p ≥ 0.05
Receiving AFDC at assessment
FavorableUnfavorable or ambiguousNo Effect
2 year Teen mothers sample 192 mothers % = 61.30 % = 54.60 = 6.70 HomVEE calculated = 0.17 Not statistically significant, p ≥ 0.05
Working or in job training
FavorableUnfavorable or ambiguousNo Effect
1 year Teen mothers sample 234 mothers % = 16.50 % = 18.50 = -2.00 HomVEE calculated = -0.08 Not statistically significant, p ≥ 0.05
Working or in job training
FavorableUnfavorable or ambiguousNo Effect
2 year Teen mothers sample 194 mothers % = 26.60 % = 29.00 = -2.40 HomVEE calculated = -0.07 Not statistically significant, p ≥ 0.05
PAT Parents as First Teachers (New Zealand)
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Outcome measure Effect Follow-up timing Sample Sample size Intervention group Comparison group Group difference Effect size Statistical significance Notes
Attained additional educational qualifications since birth of child
FavorableUnfavorable or ambiguousNo Effect
3 years Dunedin 207 mothers Unadjusted % = 0.23 Unadjusted % = 0.30 Mean difference = -0.07 HomVEE calculated = -0.22 Not statistically significant, p ≥ 0.05
Elley-Irving Socio-Economic Index
FavorableUnfavorable or ambiguousNo Effect
3 years Dunedin sample 208 mothers Not available Not available Not reported Not available Not statistically significant, p ≥ 0.05
Family means of transport
FavorableUnfavorable or ambiguousNo Effect
3 years Dunedin sample 208 mothers Not available Not available Not reported Not available Not statistically significant, p ≥ 0.05
Family owns car
FavorableUnfavorable or ambiguousNo Effect
3 years Dunedin sample 208 mothers Unadjusted % = 0.88 Unadjusted % = 0.90 Mean difference = -0.02 HomVEE calculated = -0.12 Not statistically significant, p ≥ 0.05
Family Strains Questionnaire, Sum of strains
FavorableUnfavorable or ambiguousNo Effect
3 years Dunedin sample 206 mothers Unadjusted mean = 10.92 Unadjusted mean = 9.97 Mean difference = 0.95 HomVEE calculated = 0.12 Not statistically significant, p ≥ 0.05
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Authors report that significantly more program group families reported experiencing increased strain on family money for medical expenses, clothes, food, etc., but, after applying the Bonferroni inequality, this difference was no longer significant.
Family Stressors Questionnaire, Sum of stressors
FavorableUnfavorable or ambiguousNo Effect
3 years Dunedin sample 206 mothers Unadjusted mean = 15.42 Unadjusted mean = 14.54 Mean difference = 0.88 HomVEE calculated = 0.10 Not statistically significant, p ≥ 0.05
Held a community services card
FavorableUnfavorable or ambiguousNo Effect
3 years Dunedin sample 208 mothers Unadjusted % = 0.39 Unadjusted % = 0.42 Mean difference = -0.03 HomVEE calculated = -0.08 Not statistically significant, p ≥ 0.05
Language use in the home
FavorableUnfavorable or ambiguousNo Effect
3 years Dunedin sample 208 mothers Not available Not available Not reported Not available Not statistically significant, p ≥ 0.05
Mother working in full-time position
FavorableUnfavorable or ambiguousNo Effect
3 years Dunedin sample 208 mothers Unadjusted % = 0.35 Unadjusted % = 0.53 Mean difference = -0.18 HomVEE calculated = -0.45 Statistically significant, p < 0.05
Mother working in paid employment
FavorableUnfavorable or ambiguousNo Effect
3 years Dunedin sample 208 mothers Unadjusted % = 0.64 Unadjusted % = 0.56 Mean difference = 0.08 HomVEE calculated = 0.20 Not statistically significant, p ≥ 0.05
Receiving government support
FavorableUnfavorable or ambiguousNo Effect
3 years Dunedin sample 208 mothers Unadjusted % = 0.42 Unadjusted % = 0.39 Mean difference = 0.03 HomVEE calculated = 0.08 Not statistically significant, p ≥ 0.05
Subjective perception of income level
FavorableUnfavorable or ambiguousNo Effect
3 years Dunedin sample 207 mothers Not available Not available Not reported Not available Not statistically significant, p ≥ 0.05
Type of accomodation
FavorableUnfavorable or ambiguousNo Effect
3 years Dunedin sample 208 mothers Not available Not available Not reported Not available Not statistically significant, p ≥ 0.05
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