This paper examines the causal impact of early childhood education on social preferences of children. The paper compares children who, at 3-4 years old, were randomized into either a full-time preschool, a parenting program with incentives, or to a control group. We returned to the same children when they reached 7-8 years old and conducted a series of incentivized experiments to elicit their social preferences. The Stata do.file included here is to use deidentified data to create Tables 1 and 3 for this NBER paper: https://www.nber.org/system/files/working_papers/w22898/w22898.pdf