Table 1. Taxonomy of regression models describing the relationship of medicine subject exam percent of questions correct to multiple variables.
| Predictor | Model A | Model B | Model C | Model D | Model E | Model F | Model G |
| Intercept | 39.47*** (9.79) | 78.04*** (88.59) | 71.46*** (43.33) | 24.15** (3.34) | 38.94*** (9.29) | 36.84*** (8.98) | 7.50 (1.13) |
| Medicine Self-Assessment Score | 1.81*** (9.53) | 1.82*** (9.47) | 1.72*** (9.12) | 0.94*** (4.77) | |||
| Dates Prior to Subject Exam | -0.02 (-0.76) | 0.01 (0.48) | 0.00 (0.13) | 0.11* (2.26) | |||
| Quarter | 2.12*** (3.98) | 1.53** (3.48) | 1.58*** (4.01) | ||||
| USMLE Step 1 Score | 0.23*** (7.63) | 0.19 (6.50) | |||||
| R2 | 0.3522 | 0.4456 | 0.0866 | 0.2965 | 0.3531 | 0.3972 | 0.4915 |
| F | 90.79 | 0.58 | 15.83 | 58.17 | 45.30 | 36.25 | 32.63 |
| (df) | (1, 167) | (1, 167) | (1, 167) | (1, 138) | (2, 166) | (3, 165) | (4, 135) |
| p | <0.0001 | 0.4456 | 0.0001 | <0.0001 | <0.0001 | <0.0001 | <0.0001 |
| RMSE | 6.5941 | 8.1785 | 7.8301 | 5.9547 | 6.6093 | 6.3992 | 5.1184 |
| Each cell lists estimated regression coefficients and (t-statistic). * p < 0.05, ** p < 0.01, *** p < 0.001 | |||||||