Rating rater improvement: a method for estimating increased effect size and reduction of clinical trial costs.

@article{Cogger2007RatingRI,
  title={Rating rater improvement: a method for estimating increased effect size and reduction of clinical trial costs.},
  author={Kenneth O. Cogger},
  journal={Journal of clinical psychopharmacology},
  year={2007},
  volume={27 4},
  pages={418-20}
}