TY - DATA T1 - Head Start Impact Study (HSIS), 2002-2006 [United States] AU - United States Department of Health and Human Services. Administration for Children and Families. Office of Planning, Research and Evaluation PY - 2018 DO - 10.3886/ICPSR29462.v7 PB - Inter-university Consortium for Political and Social Research [distributor] ER -