Alan Sánchez, Marta Favara, Margaret Sheridan, Jere Behrman
Does early nutrition predict cognitive skills during later childhood? Evidence from two developing countries
World development
currently controversy regarding need effectiveness behavior modification children attentiondeficit hyperactivity disorder adhd despite years study multiple investigations reporting beneficial effects intervention metaanalysis conducted identifying relevant behavioral treatment studies literature onehundred seventyfour studies behavioral treatment identified 114 individual papers appropriate metaanalysis effect sizes varied study design generally study characteristics demographic variables participants studies overall unweighted effect sizes group studies 83 prepost studies 70 within group studies 264 single subject studies 378 indicated behavioral treatments highly effective based results strong consistent evidence behavioral treatments effective treating adhd