Do the Effects of Head Start Vary by Parental Preacademic Stimulation?

Data from the Head Start Impact Study ( N = 3,185, age = 3–4 years) were used to determine whether 1 year of Head Start differentially benefited children from homes with high, middle, and low levels of parental preacademic stimulation on three academic outcome domains—early math, early literacy, and receptive vocabulary. Results from residualized growth models showed positive impacts of random assignment to Head Start on all three outcomes, and...