Policy Challenge
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Program Type
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6
1
5
Early Childhood Cognition
Parents as Teachers (eECC)
15
-4
Evaluation Effect Average Age Observations Experimental Evaluation Country Intervention
Wagner 1999 i 2 0 363 Yes United States Monthly 45-60 minutes home visits
Drotar 2008 0 0 308 Yes United States Home visits and group meetings
Wagner 1999 iv 4 0 186 Yes United States Monthly 1 hour home visits and group meetings until child is 2 years
Wagner 1999 ii 26 0 185 Yes United States Monthly home visits, group meetings, case management service
Wagner 1999 iii 32 0 184 Yes United States Face-to-face case management services for mothers at least quarterly

Graph of Effects

This graph shows the effects of [Number of Evaluations] evaluations of [Program Type] programs. The first evaluation, [Evaluation name 1], estimated an effect of [Estimated effect Eval. 1] points (graphed with the top grey circle). Because this is an estimate, there is uncertainty about what the true effect is. But we know that the true effect will probably lie between a low value of [True effect lie between – Low value, Eval. 1] and a high value of [True effect lie between – High value, Eval. 1] (graphed with the top horizontal line). We can combine the estimates from all the evaluations and compute an average effect of [Estimated effect, Average] (graphed with the black circle). There is also uncertainty about where the true average effect is. But we know that the true average effect probably lies between [True effect lie between – Low value, Average] and [True effect lie between – High value, Average] points (graphed with the bottom horizontal line).
Evaluation Effects Low Value High Value Weight in Average Effect (%)
Drotar 2008 0 -16 15 38
Wagner 1999 i 2 -13 17 39
Wagner 1999 ii 26 2 50 8
Wagner 1999 iii 32 7 57 8
Wagner 1999 iv 4 -20 28 8
Overall