jplalor
commented
4 weeks ago The 1PL model use variational inference. There is also a fit_MCMC option.
At the moment, the package only supports binarized data. To implement a model that can take continuous values, you would need to make a new file here: https://github.com/nd-ball/py-irt/tree/master/py_irt/models
Could tell me if the 1PL model uses the EM algorithm for parameter estimation. Also, is it possible to estimate parameters with my observational data if it is transformed into non-binary data? Thank you very much for your help.