| compute_adjustment | compute_adjustment |
| generate_interaction | Generate interaction data set |
| name_key | Name key for plotting |
| norm2ordinal | norm2ordinal |
| plot_interaction | Plot interaction |
| plot_power_curve | Plot power curve |
| plot_simple_slope | Simple slope plot |
| power_estimate | Power estimate |
| power_interaction | Power analysis for interactions |
| power_interaction_r2 | Analytic power analysis for interactions |
| test_interaction | Test interaction |