Applying a Multiple Comparison Control to IRT Item-fit Testing
Sign Up to like & getrecommendations! Published in 2020 at "Applied Measurement in Education"
DOI: 10.1080/08957347.2020.1789138
Abstract: ABSTRACT We used simulation techniques to assess the item-level and familywise Type I error control and power of an IRT item-fit statistic, the S-X2 . Previous research indicated that the S-X2 has good Type I… read more here.
Keywords: familywise type; type error; control; item fit ... See more keywords
Item-Fit Statistic Based on Posterior Probabilities of Membership in Ability Groups
Sign Up to like & getrecommendations! Published in 2022 at "Applied Psychological Measurement"
DOI: 10.1177/01466216221108061
Abstract: A novel approach to item-fit analysis based on an asymptotic test is proposed. The new test statistic, χ w 2 , compares pseudo-observed and expected item mean scores over a set of ability bins. The… read more here.
Keywords: ability; based posterior; item fit; statistic based ... See more keywords
The Standardized S-X2 Statistic for Assessing Item Fit
Sign Up to like & getrecommendations! Published in 2022 at "Applied Psychological Measurement"
DOI: 10.1177/01466216221108077
Abstract: The S-X2 statistic (Orlando & Thissen, 2000) is popular among researchers and practitioners who are interested in the assessment of item fit. However, the statistic suffers from the Chernoff–Lehmann problem (Chernoff & Lehmann, 1954) and… read more here.
Keywords: statistic assessing; item fit; assessing item; item ... See more keywords