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Standard error of an equating by item response theory
Lord, Frederic M. (1982)
 

Title 
Standard error of an equating by item response theory

Author(s)

Issue Date
1982

Type
Article

Abstract
A formula is derived for the asymptotic standard error of a true-score equating by item response theory. The equating method is applicable when the two tests to be equated are administered to different groups along with an anchor test. Numerical standard errors are shown for an actual equating (1) comparing the standard errors of IRT, linear, e and equipercentile methods and (2) illustrating the effect of the length of the anchor test on the standard error of the equating.

Appears in Collection(s)

Other Identifier(s)
other: doi:10.1177/014662168200600407

Suggested Citation
Lord, Frederic M.. (1982). Standard error of an equating by item response theory. Retrieved from the University of Minnesota Digital Conservancy, http://purl.umn.edu/101548.


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