NEWS.md

In hplieninger/mpt2irt: Bringing Multinomial Processing Tree Models To Item Response Theory To Investigate Response Styles

Version 0.2.0

• The Stan part of the package was split off into a new package mpt2irtStan. This was done (a) to comply with new versions of rstan and rstantools, (b) to be able to have C++ code (sample_pp()) in mpt2irt, and (c) for easier maintenance.

Version 0.1.4

• Fixed bug in estimation of latent variance Sigma for uni-dimensional models (i.e., Steps and PCM)

Version 0.1.3

• Added JAGS version of the shift model (introduced only in Stan in 0.1.1)

Version 0.1.2

• Implementation of more thorough posterior predictive checking including several discrepancy measures.

Version 0.1.1

• Implementation of the Steps Model (Verhelst; Tutz) as well as a shift model (both only in Stan)

• Bug fix with respect to the priors for the item parameters in the PCM

• Core functions now coherently return a list of arguments and setup parameters in a list called args.

Version 0.1.0

• Basic functionality via fit_irtree() to fit the response style model of Boeckenholt (2012) and an extended version including acquiescence using JAGS and/or Stan

• Recovery simulations using recovery_irtree()

• Functions to plot and summarize a fitted model

hplieninger/mpt2irt documentation built on May 17, 2019, 4:54 p.m.