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Model-data fit evaluation: item fit and model selection

2023
Alberto Maydeu-Olivares   +3 more
openaire   +1 more source

COVID-19 REINFECTION PROCESSES: MATHEMATICAL MODELING, DATA FITTING WITH TIME-VARYING PARAMETERS, AND OPTIMAL CONTROL STUDIES

Journal of Biological Systems
In this paper, we construct a COVID-19 dynamic model that included both the initial and reinfected population compartments, and conduct a structural identifiability analysis of the model parameters to ensure the robustness of the parameter fitting results. We use some actual statistical data from North Carolina to fit the model and estimate the values
JIE YANG, XUAN WANG, JIE LOU
openaire   +1 more source

Using Item Response Theory and Model—Data Fit to Conceptualize Differential Item and Person Functioning for Students With Disabilities

Educational and Psychological Measurement, 2008
The major purpose of this study is to describe a conceptual framework for examining differential item functioning (DIF) and differential person functioning (DPF) as types of model—data misfit within the context of assessing students with disabilities. Specifically, DIF and DPF can be viewed through the lens of residual analyses.
openaire   +1 more source

Evaluating Model-Data Fit by Comparing Parametric and Nonparametric Item Response Functions: Application of a Tukey-Hann Procedure.

Journal of applied measurement, 2017
This study describes an approach for examining model-data fit for the dichotomous Rasch model using Tukey-Hann item response functions (TH-IRFs). The procedure proposed in this paper is based on an iterative version of a smoothing technique proposed by Tukey (1977) for estimating nonparametric item response functions (IRFs).
Jeremy Kyle, Jennings, George, Engelhard
openaire   +1 more source

An Investigation of Goodness of Model Data Fit

2014
Madde Tepki Kuramına (MTK) dayanan modellerin avantajı, model veri uyumu sağlandığında görülebilir. Bu nedenle bu çalışma ÖZDEBİR ÖSS 2004 D-II Sınavının Fen Testinden elde edilen verilere MTK’ya dayanan modellerden hangisinin en iyi uyum sağlayacağını araştırmayı amaçlamıştır.
openaire   +1 more source

Model-data fit evaluation: posterior checks and Bayesian model selection

2023
Allison Ames Boykin   +2 more
openaire   +1 more source

Simple nonparametric checks for model data fit in CAT

2005
In this paper, the usefulness of several nonparametric checks is discussed in a computerized adaptive testing (CAT) context. Although there is no tradition of nonparametric scalability in CAT, it can be argued that scalability checks can be useful to investigate, for example, the quality of item pools.
openaire   +1 more source

Model-Data Fit for Polytomous Rating Scale Models

2017
George Engelhard, Stefanie A. Wind
openaire   +1 more source

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