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Ingels, Steven J.; Pratt, Daniel J.; Rogers, James E.; Siegel, Peter H.; Stutts, Ellen S. – National Center for Education Statistics, 2004
This manual has been produced to familiarize data users with the procedures followed for data collection and processing for the base year of the Education Longitudinal Study of 2002 (ELS:2002). It also provides the necessary documentation for use of the public-use data files, as they appear on the ELS:2002 base year Electronic Codebook (ECB). Most…
Descriptors: Longitudinal Studies, Data Analysis, Statistical Data, Data Collection
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Burchinal, Margaret; Appelbaum, Mark I. – Child Development, 1991
Quantitative growth curve models for estimating individual developmental functions from various types of longitudinal data are discussed in the context of investigator assumptions and research design characteristics. Linear and nonlinear models that estimate growth curves are illustrated, and contrasted when they are fit to speech development…
Descriptors: Children, Individual Development, Individual Differences, Language Acquisition
Tourangeau, Roger; And Others – 1987
This manual was produced to familiarize data users with the procedures followed in data collection and processing of the fifth follow-up survey of the National Longitudinal Survey of the High School Class of 1972 (NLS-72) and to provide documentation for use of the file. The data file is a computerized data base, which is available on magnetic…
Descriptors: Data Collection, Databases, Followup Studies, High School Students
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Baker, Paula C.; And Others – 1993
This handbook is a guide and reference document for those researching the child data files of the 1986-1990 National Longitudinal Survey of Youth, sponsored by the Bureau of Labor Statistics. It describes the child data collection procedures, the nature of the child sample, the child data files available, and the specifics of the child assessments…
Descriptors: Academic Achievement, Behavior Problems, Children, Cognitive Development