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Petersen, 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
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Pope, Gregory A.; Wentzel, Carolyn; Braden, Brigitta; Anderson, Jordan – Alberta Journal of Educational Research, 2006
The purpose of this study was to investigate statistical relationships between gender and Alberta Achievement Testing Program scores. Achievement test scores from grades 3, 6, and 9 in all subject areas were investigated during a four-year period. Results showed statistically significant positive correlations between gender and scores in most…
Descriptors: Foreign Countries, Grade 3, Testing Programs, Reading Assignments