This article presents a new and freely available tool for performing analyses according to the Rasch model (RM) and the latent class analysis (LCA). The software allows for the estimation of the model parameters and offers several measures of model fit. A graphical user interface (GUI) provides access to numerous options regarding data, models, and output. For educational purposes, an optional annotate feature allows to augment the output with brief explanations and citations regarding the procedures. Based on published data, the features of GANZ RASCH are briefly illustrated in two worked examples. The program intends to combine ease of use while allowing for performing a full-fledged analysis, thus targeting a wide range of users.
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