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Download full textMoses, Tim; Kim, Sooyeon – ETS Research Report Series, 2007
This study evaluated the impact of unequal reliability on test equating methods in the nonequivalent groups with anchor test (NEAT) design. Classical true score-based models were compared in terms of their assumptions about how reliability impacts test scores. These models were related to treatment of population ability differences by different…
Descriptors: Reliability, Equated Scores, Test Items, Statistical Analysis
