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Direct linkMann, Heather M.; Rutstein, Daisy W.; Hancock, Gregory R. – Educational and Psychological Measurement, 2009
Multisample measured variable path analysis is used to test whether causal/structural relations among measured variables differ across populations. Several invariance testing approaches are available for assessing cross-group equality of such relations, but the associated test statistics may vary considerably across methods. This study is a…
Descriptors: Path Analysis, Inferences, Sampling, Measurement
Rijmen, 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
Download full textRosen, Russell S. – International Journal of Special Education, 2009
This is a critical review of surveys conducted on the American deaf population since 1990. There is no agreement among the surveys on the number of deaf and hard of hearing individuals in the US. This behooves us to study the question: Why the lack of agreement in estimates and prevalence rates of the American general deaf and the deaf child…
Descriptors: Deafness, Partial Hearing, Population Groups, Incidence
