The two primary, repeating early childhood surveys are the School Readiness (SR-NHES) and Early Childhood Program Participation (ECPP-NHES or ECE-NHES) surveys. The School Readiness survey was conducted in 1993 and 2007, with a limited number of questions asked in the Parent-NHES survey of 1999. The Early Childhood Program Participation surveys occurred in 1991, 1995, 2001, and 2005, with a subset of questions also asked in 1999.
ECPP surveys include questions on the following topics:
The SR surveys include questions on the following topics:
Extensive background and household information was also collected about children and their families.