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Ingels, Steven J. – Online Submission, 2004
This paper addresses two audiences--those who design education trend studies that simultaneously have longitudinal and intercohort implications, and the secondary analysts who use such trend data. Four study series conducted for the U.S. Department of Education's National Center for Education Statistics (NCES) provide material for the paper: the…
Descriptors: Change, Cohort Analysis, Comparative Analysis, Computation