Education Longitudinal Study of 2002 ELS:2002: Base-Year to Second Follow-Up Data File Documentation. NCES 2008-347Report as inadecuate

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National Center for Education Statistics

The Data File Documentation reports on the procedures and methodologies employed during the Education Longitudinal Study of 2002 base year, first, and second follow-ups, with special emphasis on the second follow-up (2006). The document is designed to provide guidance for users of the restricted-use data as released in Electronic Codebook (ECB) format (NCES 2008-346) and also contains information that will be valuable to users of the public-use Data Analysis System (DAS). Included in the documentation are the following: an overview of the study and its predecessor studies; an account of instrumentation and high school records (academic transcript) collection; documentation of the sample design, weighting, imputation, and design effects; a summary of the data collection methodology and results, including detailed response rates; a description of data preparation and processing activities including linkage to ancillary external data sets and creation of composite variables; and an overview of data file structure and contents. The following are appended: (1) Cross-Cohort Comparisons; (2) Quick Guide to Using the ELS:2002/06 Data; (3) Synopsis of the ELS:2002 Second Follow-up Field Test Report; (4) Data File Documentation Errata; (5) Flow Chart and Facsimile for the Second Follow-up Questionnaire; (6) Occupational Coding Crosswalk; (7) Transcript Standard Errors and Design Effects; (8) Propensity Models Versus Weighting Cell Approaches to Nonresponse Adjustment: A Methodological Comparison; (9) Average Weight Adjustment Factors; (10) Standard Errors and Design Effects; (11) Nonresponse Bias Tables; (12) Variable List for the ELS:2002 Electronic Codebook (ECB) and Data Analysis System (DAS); (13) Second Follow-up Composite Variables; (14) Data Imported Into ELS:2002 From External Sources; and (15) Glossary of Terms. (Individual appendices contain references.) [For "Education Longitudinal Study of 2002: Base-Year to First Follow-Up Data File Documentation. NCES 2006-344," see ED489083.]

Descriptors: Longitudinal Studies, Research Methodology, High School Students, Data Collection, Questionnaires, Transcripts (Written Records), Student Records, Statistical Analysis, Coding, Flow Charts, Computation, Data Analysis, Exit Examinations, High Schools, Test Construction, Mathematics Achievement, Reading Achievement, Scores

National Center for Education Statistics. Available from: ED Pubs. P.O. Box 1398, Jessup, MD 20794-1398. Tel: 877-433-7827; Web site:

Author: Ingels, Steven J.; Pratt, Daniel J.; Wilson, David; Burns, Laura J.; Currivan, Douglas; Rogers, James E.; Hubbard-Bednasz, Sherry


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