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On the Study of Matching Cut-Scores to Test Characteristics: An Observed Score Approach IRT

Author(s):
Wainer, Howard
Publication Year:
1985
Report Number:
RR-85-14, PSRTR-85-56
Source:
ETS Research Report
Document Type:
Report
Page Count:
6
Subject/Key Words:
Cutting Scores, Item Response Theory (IRT), Scores, Test Reliability

Abstract

When a test is used with a cut score, the usual measure of test reliability are often inappropriate. This is because they characterize the structure of the entire range of the test, rather than in the immediate vicinity of the cut-score. (6pp.)

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