This appendix provides two tables of information related to a study of the relationship between children's development and quality levels, quality features, and the extent of children's exposure to early care and education, based on secondary data analyses of eight large-scale studies of preschool children. The tables consist of child and family characteristics for matched and unmatched child samples in the Family and Child Experiences Survey (FACES 2006 and 2009) and the Head Start Impact Study (HSIS).