| mlm_center | Center variables for multilevel modeling |
| mlm_jn | Johnson-Neyman interval for multilevel two-way interactions |
| mlm_plot | Publication-ready interaction plot for multilevel models |
| mlm_probe | Probe simple slopes from a multilevel interaction |
| mlm_sensitivity | Robustness diagnostics for cross-level interaction effects |
| mlm_summary | Summary table for a multilevel moderation effect |
| mlm_surface | Contour plot of predicted outcomes over the predictor x moderator space |
| mlm_variance_decomp | Decompose uncertainty in the simple slope of a multilevel interaction |
| plot.mlm_jn | Plot a Johnson-Neyman interval from a multilevel model |
| plot.mlm_sensitivity | Plot robustness diagnostics for a cross-level interaction |
| plot.mlm_variance_decomp | Plot the variance decomposition of simple slopes |
| school_data | Simulated school achievement dataset |