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Since 2006 (last 20 years)2
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Correlation2
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Equated Scores2
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ETS Research Report Series2
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Holland, Paul2
Sinharay, Sandip2
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The Correlation between the Scores of a Test and an Anchor Test. Research Report. ETS RR-06-04
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Sinharay, Sandip; Holland, Paul – ETS Research Report Series, 2006
It is a widely held belief that an anchor test used in equating should be a miniature version (or "minitest") of the tests to be equated; that is, the anchor test should be proportionally representative of the two tests in content and statistical characteristics. This paper examines the scientific foundation of this belief, especially…
Descriptors: Test Items, Equated Scores, Correlation, Tests
Choice of Anchor Test in Equating. Research Report. ETS RR-06-35
Peer reviewed Peer reviewed
PDF on ERIC Download full text
Sinharay, Sandip; Holland, Paul – ETS Research Report Series, 2006
It is a widely held belief that anchor tests should be miniature versions (i.e., minitests), with respect to content and statistical characteristics of the tests being equated. This paper examines the foundations for this belief. It examines the requirement of statistical representativeness of anchor tests that are content representative. The…
Descriptors: Test Items, Equated Scores, Evaluation Methods, Difficulty Level