@ARTICLE{maydeu2012,
  author       = {Maydeu-Olivares, A. and Montano, R.},
  title        = {How should we assess the fit of Rasch-type models?  Approximating the power of goodness-of-fit statistics in categorical data analysis},
  journal = {Psychometrika},
  year         = {2012},
  volume       = {38},
  number    = {1},
  pages        = {116-133}
}