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Applied Psychological…2
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Cohen, Allan S.1
Kim, Seock-Ho1
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An Investigation of the Likelihood Ratio Test for Detection of Differential Item Functioning.
Peer reviewed Peer reviewed
Cohen, Allan S.; And Others – Applied Psychological Measurement, 1996
Type I error rates for the likelihood ratio test for detecting differential item functioning (DIF) were investigated using Monte Carlo simulations. Type I error rates for the two-parameter model were within theoretically expected values at each alpha level, but those for the three-parameter model were not. (SLD)
Descriptors: Identification, Item Bias, Item Response Theory, Maximum Likelihood Statistics
An Investigation of Lord's Procedure for the Detection of Differential Item Functioning.
Peer reviewed Peer reviewed
Kim, Seock-Ho; And Others – Applied Psychological Measurement, 1994
Type I error rates of F. M. Lord's chi square test for differential item functioning were investigated using Monte Carlo simulations with marginal maximum likelihood estimation and marginal Bayesian estimation algorithms. Lord's chi square did not provide useful Type I error control for the three-parameter logistic model at these sample sizes.…
Descriptors: Algorithms, Bayesian Statistics, Chi Square, Error of Measurement