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Table 5 Results from the Multinomial Logistic Regression analysis for block 4

From: Investigation of answer changes on the USMLE® Step 2 Clinical Knowledge examination

  Variable Coefficient Estimate Std. Error OR 95% Confidence Interval P-value
W-R vs. R-W
log odds
Intercept 0.299 0.044    < 0.0001
Ability: High vs. Low 0.226 0.046 1.25 1.15–1.37 < 0.0001
Medium vs. Low 0.103 0.046 1.11 1.01–1.21 0.026
R-R vs. R-W
log odds
Intercept −2.830 0.125    < 0.0001
Ability: High vs. Low 0.116 0.132 1.12 0.87–1.45 0.380
Medium vs. Low 0.032 0.134 1.03 0.79–1.34 0.809
W-W vs. R-W
log odds
Intercept 0.136 0.044    0.002
Ability: High vs. Low −0.491 0.048 0.61 0.56–0.67 < 0.0001
Medium vs. Low −0.208 0.047 0.81 0.74–0.89 < 0.0001
  1. W-R wrong to right response changes, R-W right to wrong response changes, W-W wrong to wrong response changes, R-R right to right response changes