Investigating latent constructs with item response models: A MATLAB IRTm toolbox. Item response theory (IRT) models are the central tools in modern measurement and advanced psychometrics. IRTm is a MATLAB IRT modeling toolbox that can fit a large variety of IRT models for binary responses. A design-matrix approach is followed, giving the end-user control and flexibility in building a model that goes beyond standard models like the Rasch or 2PL model. For instance, the very recent copula IRT models to handle local item dependencies are included, as well as the possibility to take into account differential item functioning, and many more. Data simulation is supported.
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References in zbMATH (referenced in 1 article )
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- Ip, Edward H.; Chen, Shyh-Huei; Quandt, Sara A.: Analysis of multiple partially ordered responses to belief items with don’t know option (2016)