LRT                     Likelihood ratio test using a mean-shifted
                        model
LRT_FE                  Likelihood ratio test using a mean-shifted
                        model by the fixed-effect model
PPI                     Crocker et al. (2018)'s patient and public
                        involvement (PPI) intervention data
SMT                     Rubinstein et al. (2019)'s chronic low back
                        pain data
STR                     Studentized residuals by leave-one-out analysis
STR_FE                  Studentized residuals by leave-one-out analysis
                        for the fixed-effect model
VRATIO                  Variance ratio influential statistics
boutliers-package       The 'boutliers' package.
finasteride             A multicenter clinical trial data assessing the
                        treatment effect of finasteride for benign
                        prostatic hyperplasia
