Search Results - subject:"item parameters"

Additive Multilevel Item Structure Models with Random Residuals: Item Modeling for Explanation and Item Generation

Cho, Sun-Joo; Boeck, Paul; Embretson, Susan; … - In: Psychometrika 79 (2014) 1, pp. 84-104

An additive multilevel item structure (AMIS) model with random residuals is proposed. The model includes multilevel latent regressions of item discrimination and item difficulty parameters on covariates at both item and item category levels with random residuals at both levels. The AMIS model is...

Persistent link: https://www.econbiz.de/10010848166

Explanatory Multidimensional Multilevel Random Item Response Model: An Application to Simultaneous Investigation of Word and Person Contributions to Multidimensional Lexical Representations

Cho, Sun-Joo; Gilbert, Jennifer; Goodwin, Amanda - In: Psychometrika 78 (2013) 4, pp. 830-855

reading data with multilevel item structure. The model includes multilevel random item parameters that allow consideration of … variability in item parameters at both item and item group levels. Item-level random item parameters were included to model …-level random item parameters were included to model dependency in item responses among items having the same item stem. Using the …

Persistent link: https://www.econbiz.de/10010848132

An Eigenvector Method for Estimating Item Parameters of the Dichotomous and Polytomous Rasch Models

Garner, Mary; Engelhard, George - 2002

The purpose of this paper is to describe a technique for obtaining item parameters of the Rasch model, a technique in … which the item parameters are extracted from the eigenvector of a matrix derived from comparisons between pairs of items …

Persistent link: https://www.econbiz.de/10009458999

Optimum examinee samples for item parameter estimation in item response theory: A multi-objective programming approach

Timminga, Ellen - In: Psychometrika 60 (1995) 1, pp. 137-154

Persistent link: https://www.econbiz.de/10005603678

Specifying optimum examinees for item parameter estimation in item response theory

Stocking, Martha - In: Psychometrika 55 (1990) 3, pp. 461-475

Persistent link: https://www.econbiz.de/10005184048

Statistical bias in maximum likelihood estimators of item parameters

Lord, Frederic - In: Psychometrika 48 (1983) 3, pp. 425-435

Persistent link: https://www.econbiz.de/10005376456

Marginal maximum likelihood estimation of item parameters: Application of an EM algorithm

Bock, R.; Aitkin, Murray - In: Psychometrika 46 (1981) 4, pp. 443-459

Persistent link: https://www.econbiz.de/10005612703