Testing Differential Item Functioning in Small Samples
Sign Up to like & getrecommendations! Published in 2019 at "Multivariate Behavioral Research"
DOI: 10.1080/00273171.2019.1671162
Abstract: Abstract Differential item functioning (DIF) is a pernicious statistical issue that can mask true group differences on a target latent construct. A considerable amount of research has focused on evaluating methods for testing DIF, such… read more here.
Keywords: small samples; irt; model; parameter logistic ... See more keywords
Examining the Robustness of the Graded Response and 2-Parameter Logistic Models to Violations of Construct Normality
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DOI: 10.1177/00131644211063453
Abstract: When fitting unidimensional item response theory (IRT) models, the population distribution of the latent trait (θ) is often assumed to be normally distributed. However, some psychological theories would suggest a nonnormal θ. For example, some… read more here.
Keywords: graded response; parameter logistic; normality; parameter ... See more keywords
birtr: A Package for “The Basics of Item Response Theory Using R”
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DOI: 10.1177/0146621617748327
Abstract: The birtr package provides nine important functions, iccplot, icccal, icc, iccfit, groupinv, tcc, ability, tif, and rasch, for Baker and Kim (2017). Note that the functions can be used with the previous edition of the… read more here.
Keywords: logistic model; characteristic curve; model; parameter logistic ... See more keywords
Bayesian Modal Estimation for the One-Parameter Logistic Ability-Based Guessing (1PL-AG) Model
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DOI: 10.1177/0146621621990761
Abstract: The calibration of the one-parameter logistic ability-based guessing (1PL-AG) model in item response theory (IRT) with a modest sample size remains a challenge for its implausible estimates and difficulty in obtaining standard errors of estimates.… read more here.
Keywords: one parameter; estimation; 1pl model; model ... See more keywords
A General Three-Parameter Logistic Model With Time Effect
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DOI: 10.3389/fpsyg.2020.01791
Abstract: Within the framework of item response theory, a new and flexible general three-parameter logistic model with response time (G3PLT) is proposed. The advantage of this model is that it can combine time effect, ability, and… read more here.
Keywords: logistic model; three parameter; time; time effect ... See more keywords