Conditional cash transfer programs (CCTs) have shown mixed effects on child development outcomes in the context of poverty. Direct parenting support integrated with CCTs may improve the effectiveness of CCTs for children's development, and benefits could occur via improvements in parenting practices or the home environment. Here, we use data from…

Most of the individual difference variance in the population is found "within" families, yet studying the processes causing this variation is difficult due to confounds between genetic and nongenetic influences. Quasi-experiments can be used to test hypotheses regarding environment exposure (e.g., timing, duration) while controlling for…