Table 4

Treatment Effects Estimated through ANCOVA: Full Sample, and Heterogeneity by Child Gender, Household Poverty, and Geographical Areas

MathLiteracyComposite Learning Score
Panel A: All Children
School feeding0.1470.1320.168
[–0.003 – 0.298][–0.012 – 0.277][0.002 – 0.333]
Unadjusted p-value0.055*0.072*0.047**
R-W p-value0.098*0.098*
Observations2,2782,2742,314
R-squared0.0680.1300.139
Mean treatment endline0.1120.1050.194
Mean control endline-0.0435-0.05620
GirlsBoysGirlsBoysGirlsBoys
Panel B: Gender
School feeding0.2420.06450.2050.07580.2730.0797
[0.079 – 0.405][–0.116 – 0.245][0.042 – 0.368][–0.084 – 0.235][0.0887 – 0.456][–0.107 – 0.267]
Unadjusted p-value0.004***0.4780.014**0.3490.004***0.399
R-W p-value0.006***0.5730.012**0.573
Observations 1,071 1,207 1,067 1,207 1,085 1,229
R-squared0.0890.0620.1370.1350.1500.144
Mean treatment endline0.1580.07000.1200.09230.2370.156
Mean control endline−0.0878−0.00534−0.102−0.0170−0.05090.0440
Below the Poverty LineNonpoorBelow the Poverty LineNonpoorBelow the Poverty LineNonpoor
Panel C: Household Poverty
School feeding0.3090.1010.2330.08830.3280.114
[0.099 – 0.519][–0.0642 – 0.267][0.037 – 0.428][–0.0755 – 0.252][0.114 – 0.542][–0.072 – 0.299]
Unadjusted p-value0.004***0.2270.02**0.2870.003***0.227
R-W p-value0.008***0.4030.022**0.403
Observations 539 1,739 537 1,737 542 1,772
R-squared0.0900.0710.0890.1510.1230.151
Mean treatment endline0.1360.1040.07040.1160.1770.199
Mean control endline−0.186−5.20e-05−0.203−0.0115−0.1770.0539
NorthSouthNorthSouthNorthSouth
Panel D: Place of Residence
School feeding0.2530.05080.2430.03080.2970.0496
[–0.005 – 0.511][–0.118 – 0.220][0.012 – 0.474][–0.148 – 0.209][0.023 – 0.570][–0.146 – 0.245]
Unadjusted p-value0.054*0.5490.04**0.7310.034**0.613
R-W p-value0.061*0.7970.062*0.797
Observations1,0831,1951,0871,1871,0961,218
R-squared0.0430.0990.0980.1630.0900.193
Mean treatment endline0.1790.04180.1690.03820.2700.115
Mean control endline−0.0639−0.0273−0.0629−0.0509−0.01600.0127
  • Notes:

  • * p < 0.1,

  • ** p < 0.05,

  • *** p < 0.01.

  • Confidence intervals clustered at community level in squared brackets. R-W p-values were adjusted for multiple testing using the Romano–Wolf (2005, 2016) step-down method with 2,000 iterations and standard errors clustered at community level. The table above presents intent-to-treat effects on each outcome estimated through ANCOVA for the full sample and stratified by child gender, household poverty, and place of residence. Models were estimated through OLS. For each outcome, the model controls for its baseline value, a dichotomous variable related to the randomized assignment to school feeding, and region dummies. Math and literacy scores are age-standardized. The composite index of learning was computed as the average of the math and literacy scores, and then they were standardized to the control group within each round. Household poverty is a dichotomous indicator having the value of one if the household had baseline per capita consumption levels falling below the national consumption poverty line in 2013. Northern regions include Upper West, Upper East, and Northern region. Southern regions include Western, Central, Greater Accra, Volta, Eastern, Asanti, and Brong Ahafo.