High score equals unfavorable.
Early Start (New Zealand)
Model effectiveness research report last updated: 2023
Effects shown in research
Child development and school readiness
Findings rated moderate
Early Start (New Zealand)
Show findings details
| Outcome measure | Effect | Follow-up timing | Sample | Sample size | Intervention group | Comparison group | Group difference | Effect size | Statistical significance | Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| Early childhood education, duration of attendance (months) | FavorableUnfavorable or ambiguousNo Effect |
36 months | Christchurch sample | 388 children | Unadjusted mean = 16.40 | Unadjusted mean = 13.60 | Mean difference = 2.80 | Study reported = 0.22 | Statistically significant, p < 0.05 | |
| Ever attended early childhood education | FavorableUnfavorable or ambiguousNo Effect |
36 months | Christchurch sample | 388 children | % = 90.80 | % = 84.50 | = 6.30 | Study reported = 0.19 | Not statistically significant, p ≥ 0.05 | |
| Infant-Toddler Social and Emotional Assessment (ITSEA), Total behavior score | FavorableUnfavorable or ambiguousNo Effect |
36 months | Christchurch sample | 391 children | Unadjusted mean = 9.87 | Unadjusted mean = 10.11 | Mean difference = -0.24 | Study reported = 0.24 | Statistically significant, p < 0.05 | |
| Infant-Toddler Social and Emotional Assessment (ITSEA), Total externalizing score | FavorableUnfavorable or ambiguousNo Effect |
36 months | Christchurch sample | 391 children | Unadjusted mean = 9.90 | Unadjusted mean = 10.09 | Mean difference = -0.19 | Study reported = 0.19 | Not statistically significant, p ≥ 0.05 | High score equals unfavorable.
|
| Infant-Toddler Social and Emotional Assessment (ITSEA), Total internalizing score | FavorableUnfavorable or ambiguousNo Effect |
36 months | Christchurch sample | 391 children | Unadjusted mean = 9.86 | Unadjusted mean = 10.12 | Mean difference = -0.26 | Study reported = 0.26 | Statistically significant, p < 0.05 | High score equals unfavorable.
|
| Wechsler Preschool and Primary Scale of Intelligence (WPPSI), Performance IQ score | FavorableUnfavorable or ambiguousNo Effect |
36 months | Christchurch sample | 367 children | Unadjusted mean = 98.10 | Unadjusted mean = 96.80 | Mean difference = 1.30 | Study reported = 0.08 | Not statistically significant, p ≥ 0.05 | |
| Wechsler Preschool and Primary Scale of Intelligence (WPPSI), Total IQ | FavorableUnfavorable or ambiguousNo Effect |
36 months | Christchurch sample | 367 children | Unadjusted mean = 97.70 | Unadjusted mean = 96.50 | Mean difference = 1.20 | Study reported = 0.07 | Not statistically significant, p ≥ 0.05 | |
| Wechsler Preschool and Primary Scale of Intelligence (WPPSI), Verbal IQ score | FavorableUnfavorable or ambiguousNo Effect |
36 months | Christchurch sample | 367 children | Unadjusted mean = 97.70 | Unadjusted mean = 97.00 | Mean difference = 0.70 | Study reported = 0.04 | Not statistically significant, p ≥ 0.05 |