Results 131 to 140 of about 1,259 (173)

Person Specific Parameter Heterogeneity in the 2PL IRT Model

Multivariate Behavioral Research, 2023
Following Kelderman and Molenaar's demonstration that a factor model with person specific factor loadings is almost indistinguishable from the standard factor model in terms of overall fit, we examined person specific measurement models in Item Response Theory, person specific discrimination and difficulty parameters were created by adding random ...
Alexandra Lane, Perez, Eric, Loken
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Local influence analysis of the 2PL IRT model for binary responses

Journal of Statistical Computation and Simulation, 2020
Detecting influence is an important diagnostic stage in every statistical analysis. This paper examines the local influence of minor perturbations of the model and data for the two-parameter logist...
E. Tsompanaki, C. Caroni
openaire   +2 more sources

Using Lasso and Adaptive Lasso to Identify DIF in Multidimensional 2PL Models

Multivariate Behavioral Research, 2022
Differential item functioning (DIF) analysis refers to procedures that evaluate whether an item's characteristic differs for different groups of persons after controlling for overall differences in performance. DIF is routinely evaluated as a screening step to ensure items behave the same across groups.
Chun Wang, Ruoyi Zhu, Gongjun Xu
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A Comparison of Two MCMC Algorithms for the 2PL IRT Model

, 2017
Markov chain Monte Carlo (MCMC) techniques have become popular for estimating item response theory (IRT) models. The current development of MCMC includes two major algorithms: Gibbs sampling and the No-U-Turn sampler (NUTS), which can be implemented in two specialized software packages JAGS and Stan, respectively.
Meng-I Chang, Yanyan Sheng
openaire   +2 more sources

Parameter Recovery and Classification Accuracy Under Conditions of Testlet Dependency: A Comparison of the Traditional 2PL, Testlet, and Bi-Factor Models

Applied Measurement in Education, 2016
ABSTRACTTestlets, or groups of related items, are commonly included in educational assessments due to their many logistical and conceptual advantages. Despite their advantages, testlets introduce complications into the theory and practice of educational measurement.
Natalie A. Koziol
openaire   +2 more sources

Assessment of 2PL, 3PL and 4PL Model-Fit on the Wechsler Preschool and Primary Scale of Intelligence (WPPSI-IV) Using Item Response Theory

International Journal of Research and Innovation in Social Science
The purpose of this paper is to investigate into which of the models of item Response Theory that fits into the Wechsler Preschool and Primary Scale of Intelligence (WPPSI-IV) with a view to adapting the WPPSI-IV to measure the intelligence of Nigerian children aged approximately 7.
Adepoju, Olufemi Adetunji., Dauda, Isiaka Kayode., Lawal, Abduljaleel Kola   +2 more
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Local Equating Using the Rasch Model, the OPLM, and the 2PL IRT Model—or—What Is It Anyway if the Model Captures Everything There Is to Know About the Test Takers?

Journal of Educational Measurement, 2013
Local equating (LE) is based on Lord's criterion of equity. It defines a family of true transformations that aim at the ideal of equitable equating. van der Linden (this issue) offers a detailed discussion of common issues in observed‐score equating relative to this local approach.
González Burgos, Jorge Andrés, Von Davier, M., Von Davier, A.   +2 more
openaire   +3 more sources

Estimation of Asymptotic Standard Errors of Bayesian Modal Item Parameter Estimators: Application to the 2PL and 3PL Models

Korean Society for Educational Evaluation
Item parameters of item response theory (IRT) models are often estimated by the Bayesian modal (BM) method, which is an extension of the marginal maximum likelihood (MML) method. The purpose of this study is to present a general method to estimate the asymptotic standard errors (SEs) of MML or BM item parameter estimators and to examine its specific ...
Seonghoon Kim, Seonghoon Kim
openaire   +2 more sources

Ability Parameter Recovery in Virtual Learning Environment Item Response Data With the Sequential Two-Parameter Logistic Item Response Theory (2PL-IRT) Model

Proceedings of the 2021 AERA Annual Meeting, 2021
Ziying Li
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Item Parameter Recovery of the Compensatory 2PL MIRT Model by MH-RM and MML (Poster 34)

AERA 2024
Hoan Do
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