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Download full textBuzick, Heather M.; Laitusis, Cara Cahalan – Educational Testing Service, 2010
Recently growth-based approaches to accountability have received considerable attention because they have the potential to reward schools and teachers for improving student performance over time by measuring the progress of students at all levels of the performance spectrum (including those who have not yet reached proficiency on state…
Descriptors: Disabilities, Student Improvement, Accountability, Models
Sinharay, Sandip; Holland, Paul W. – Educational Testing Service, 2008
The nonequivalent groups with anchor test (NEAT) design involves missing data that are missing by design. Three popular equating methods that can be used with a NEAT design are the poststratification equating method, the chain equipercentile equating method, and the item-response-theory observed-score-equating method. These three methods each…
Descriptors: Equated Scores, Test Items, Item Response Theory, Data
