Does Head Start work? A 1-year follow-up comparison of disadvantaged children attending Head Start, no preschool, and other preschool programs.

This article examines how successful Project Head Start has been as a preschool program for economically disadvantaged children. Most Head Start evaluations have not controlled for initial differences between Head Start and comparison groups. They have also limited comparisons to those with no preschool experience, rather than considering other preschools as an alternative comparison group. Subjects were 969 disadvantaged children attending Head Start, other preschool, or no preschool in 1969–1970, longitudinally evaluated on a variety of cognitive measures. Large initial group differences were observed between Head Start children and both comparison groups, with those in Head Start at a disadvantage on nearly every demographic and cognitive measure. Adjusting for initial background and cognitive differences, Head Start children showed significantly larger gains on the Preschool Inventory and Motor Inhibition tests than either comparison group, with Black children in Head Start (especially those of below-average initial ability) gaining the most. However, despite substantial gains, Head Start children were still behind their peers in terms of absolute cognitive levels after a year in the program. Head Start proved an impressive instrument of short-term change, even compared with other preschool experience. Gains in behaviors other than intelligence suggest that the effects may not be limited to the cognitive domain. (PsycINFO Database Record (c) 2010 APA, all rights reserved)