Modeling Change in Large-Scale Longitudinal Studies of Educational Growth: Four Decades of Contributions to the Assessment of Educational Growth

Author(s):
Rock, Donald A.
Publication Year:
2012
Report Number:
RR-12-04; SPC-12-01
Source:
Document Type:
Subject/Key Words:
adaptive tests, two-stage testing, criterion referenced, gain scores, measuring change, learning milestones, locus of maximum learning gain, item response theory, growth curves, NLS:72, HS&B, NELS:88, ECLS-K, ECLS-B

Abstract

This paper provides a history of ETS’s role in developing assessment instruments and psychometric procedures for measuring change in large-scale national assessments funded by the Longitudinal Studies branch of the National Center for Education Statistics. It documents the innovations developed during more than 30 years of working with longitudinal studies based on national samples. In addition to describing these innovations, it provides their rationale and presents some empirical results in their support.

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