Results 11 to 20 of about 1,270 (156)

A Note on Equivalent and Nonequivalent Parametrizations of the Two-Parameter Logistic Item Response Model

open access: yesInformation
The two-parameter logistic (2PL) item response model is typically estimated using an unbounded distribution for the trait θ. In this article, alternative specifications of the 2PL models are investigated that consider a bounded or a positively valued θ ...
Alexander Robitzsch
doaj   +3 more sources

An Introduction to the DA-T Gibbs Sampler for the Two-Parameter Logistic (2PL) Model and Beyond

open access: yesPsicológica, 2005
The DA-T Gibbs sampler is proposed by Maris and Maris (2002) as a Bayesian estimation method for a wide variety of Item Response Theory (IRT) models.
Gunter Maris, Timo M. Bechger
doaj   +1 more source

Examining and Improving the Gender and Language DIF in the VERA 8 Tests

open access: yesPsych, 2022
The purpose of this study was to examine and improve differential item functioning (DIF) across gender and language groups in the VERA 8 tests. We used multigroup concurrent calibration with full and partial invariance based on the Rasch and two ...
Güler Yavuz Temel   +3 more
doaj   +1 more source

Information Functions of Rank‐2PL Models for Forced‐Choice Questionnaires

open access: yesJournal of Educational Measurement, 2023
AbstractThis paper presents the item and test information functions of the Rank two‐parameter logistic models (Rank‐2PLM) for items with two (pair) and three (triplet) statements in forced‐choice questionnaires. The Rank‐2PLM model for pairs is the MUPP‐2PLM (Multi‐Unidimensional Pairwise Preference) and, for triplets, is the Triplet‐2PLM.
Jianbin Fu   +2 more
openaire   +3 more sources

Investigating Measurement Invariance by Means of Parameter Instability Tests for 2PL and 3PL Models [PDF]

open access: yesEducational and Psychological Measurement, 2018
M-fluctuation tests are a recently proposed method for detecting differential item functioning in Rasch models. This article discusses a generalization of this method to two additional item response theory models: the two-parametric logistic model and the three-parametric logistic model with a common guessing parameter.
Debelak, Rudolf, Strobl, Carolin
openaire   +3 more sources

Investigation of the effect of parameter estimation and classification accuracy in mixture IRT models under different conditions

open access: yesInternational Journal of Assessment Tools in Education, 2022
This study aims to examine the effects of mixture item response theory (IRT) models on item parameter estimation and classification accuracy under different conditions.
Hakan Yavuz Atar   +1 more
doaj   +1 more source

Estimating Item Parameters and Student Abilities: An IRT 2PL Analysis of Mathematics Examination

open access: yesAl-Ishlah: Jurnal Pendidikan, 2022
This research aims to describe the characteristics of math test instruments are tested on 373 of 10th-grade vocational high school students and to describe student abilities.
Jumini Jumini, Heri Retnawati
doaj   +1 more source

2PL Model: Compare Generalized Linear Mixed Model with Latent Variable Model based IRT framework

open access: yes, 2021
Fitting item response theory (IRT) models using the generalized mixed logistic regression model (GLMM) has become more popular in large-scale assessment because GLMM allows combining complicated multilevel structures (i.e., students are nested in classrooms which are nested in schools) with IRT measurement models.
Jihong Zhang, Terry Ackerman, Yurou Wang
openaire   +2 more sources

Item parameter recovery via traditional 2PL, Testlet and Bi-factor models for Testlet-Based tests

open access: yesInternational Journal of Assessment Tools in Education, 2022
The testlet comprises a set of items based on a common stimulus. When the testlet is used in the tests, there may violate the local independence assumption, and in this case, it would not be appropriate to use traditional item response theory models in the tests in which the testlet is included. When the testlet is discussed, one of the most frequently
Sümeyra SOYSAL, Esin YILMAZ KOĞAR
openaire   +5 more sources

An investigation of enhancement of ability evaluation by using a nested logit model for multiple-choice items

open access: yesAnales de Psicologia, 2017
Multiple-choice items are wildly used in psychological and educational test. The present study investigated that if a multiple-choice item have an advantage over a dichotomous item on ability or latent trait evaluation.
Liu Tour, Wang Mengcheng, Xin Tao
doaj   +1 more source

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