“Our sample includes third and fourth graders in Argentina, Bolivia, Brazil, Chile, Colombia, the Dominican Republic, Honduras, and Peru.7 The samples were constructed to include public and private schools, and schools in metropolitan, urban, and rural areas. The samples are not strictly proportional, noticeably undersampling rural children in Brazil and Chile and undersampling urban/metro children in the Dominican Republic.8 We include only the public schools in this analysis, as the private schools would not face the same constraints on local school control.”