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Direct linkPetersen, Nancy S. – Applied Psychological Measurement, 2008
This article discusses the five studies included in this issue. Each article addressed the same topic, population invariance of equating. They all used data from major standardized testing programs, and they all used essentially the same statistics to evaluate their results, namely, the root mean square difference and root expected mean square…
Descriptors: Testing Programs, Standardized Tests, Equated Scores, Evaluation Methods
