This CD-ROM contains an electronic code book (ECB), a restricted-use child-level data file, and survey and ECB documentation for the fall and spring first grade waves of the Early Childhood Longitudinal Study, Kindergarten Class of 1998-99 (ECLS-K). All data collected from the sampled children, their parents, teachers, and schools are included.
There is an errata in the household roster data on this file. Please see the errata sheet here. Online Availability
