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ERIC Number: ED506806
Record Type: Non-Journal
Publication Date: 2009-Sep
Pages: 32
Abstractor: ERIC
Reference Count: 47
Utility and Validity of NAEP Linking Efforts
Linn, Robert L.; McLaughlin, Donald; Thissen, David
American Institutes for Research
There are a number of practical situations in which it would be desirable to be able to use the results of the administration of one assessment to estimate what the results would have been if another assessment had been administered. Test linking refers to the idea that results obtained from the administration of one test might be used to infer what the results would have been if another test had been used. Common knowledge, based on widespread experience with educational testing in the American culture, provides two contradictory views of the utility of test linking. Both of these completely opposite views are correct, to a point. Many subtle distinctions are made in psychometrics to create a systematic understanding of the various statistical methods that can be used to answer varying questions in different contexts, many of which fall under the omnibus denotation "test linking." The purpose of this essay is to summarize that understanding, with illustrations of continua of contexts, questions, and statistical methods, and with results that range from the production of comparable scores from different tests (satisfying the first view) to a conclusion that different tests yield different results (the second, opposite, view). (Contains 2 tables, 1 figure, and 5 footnotes.)
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Publication Type: Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: American Institutes for Research