Results 131 to 140 of about 1,237 (160)

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.
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Item Parameter Estimation of 2PL IRT Model With Fixed Ability Estimates: Choice of Ability Estimation Methods and Priors on Slopes

The item parameter estimation of an item response theory (IRT) model with fixed ability estimates is useful in equating with a small sample. The current study explores the impact of three ability estimation methods (maximum likelihood estimation [MLE], maximum a posteriori [MAP], and posterior ability distribution estimation [PST]) and three priors on ...
Jianbin Fu, TsungHan Ho, Xuan Tan
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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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"Mastering IRT: Interactive Tool for Exploring 2PL, 3PL, and Rasch Models with Dynamic Visualizations"

This interactive Shiny app is ideal for educators, allowing you to explore and understand Item Response Theory (IRT) models, including 2PL, 3PL, and Rasch. Visualize Item Characteristic Curves (ICCs), item information functions, and key parameters to gain insights into how these models function and analyze educational data in real-time (in files, you ...
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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 ...
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Comparison of Two MCMC Approaches to Missing Response Data in 2PL Model

Acta Psychologica Sinica, 2009
Li ZENG, Tao XIN, Shu-Mei ZHANG
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The biofilm life cycle: expanding the conceptual model of biofilm formation

Nature Reviews Microbiology, 2022
Karin Sauer, Paul Stoodley, Darla M Goeres   +2 more
exaly  

Machine learning methods to model multicellular complexity and tissue specificity

Nature Reviews Materials, 2021
Aaron K Wong, Olga G Troyanskaya
exaly  

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
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Promoting cancer screening within the patient centered medical home

Ca-A Cancer Journal for Clinicians, 2011
Robert A Smith
exaly