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Direct linkRijmen, Frank; Manalo, Jonathan R.; von Davier, Alina A. – Applied Psychological Measurement, 2009
This article describes two methods for obtaining the standard errors of two commonly used population invariance measures of equating functions: the root mean square difference of the subpopulation equating functions from the overall equating function and the root expected mean square difference. The delta method relies on an analytical…
Descriptors: Error of Measurement, Sampling, Equated Scores, Statistical Analysis
