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Harris, Deborah J.; Kolen, Michael J. – Educational and Psychological Measurement, 1988
Three methods of estimating point-biserial correlation coefficient standard errors were compared: (1) assuming normality; (2) not assuming normality; and (3) bootstrapping. Although errors estimated assuming normality were biased, such estimates were less variable and easier to compute, suggesting that this might be the method of choice in some…
Descriptors: Error of Measurement, Estimation (Mathematics), Item Analysis, Statistical Analysis
Peer reviewed Peer reviewed
Fan, Xitao – Educational and Psychological Measurement, 1998
This study empirically examined the behaviors of item and person statistics derived from item response theory and classical test theory, focusing on item and person statistics and using a large-scale statewide assessment. Findings show that the person and item statistics from the two measurement frameworks are quite comparable. (SLD)
Descriptors: Item Response Theory, State Programs, Statistical Analysis, Test Items