Table 3.
Variables | 3YMD n=48/53, Mean (SD) | 4YMD-S n=367/437, Mean (SD) | 3YMD vs 4YMD-S Comparisona | 4YMD-G n=399/459, Mean (SD) | 3YMD vs 4YMD-G Comparisona | ||
t test | P Value | t test | P Value | ||||
Medical knowledge examination mean scores | 82.50 (4.60) | 82.16 (4.79) | 0.47 | .64 | 82.43 (5.07) | 0.09 | .93 |
No. of clerkships earned honors grade | 5.06 (2.34) | 5.46 (3.06) | 0.77 | .29 | 4.91 (3.10) | 0.57 | .69 |
Medicine shelf examination scores | 74.67 (7.81) | 76.78 (7.27) | 1.88 | .06 | 78.19 (7.60) | 3.02 | .003 |
Neurology shelf examination scores | 76.69 (7.74) | 77.32 (7.69) | 0.53 | .60 | 75.72 (7.51) | 0.85 | .40 |
OB-GYN shelf examination scores | 78.51 (7.44) | 78.69 (7.15) | 0.16 | .87 | 77.78 (7.44) | 0.65 | .52 |
Pediatrics shelf examination scores | 75.16 (6.33) | 75.90 (8.71) | 0.56 | .58 | 76.31 (8.92) | 0.86 | .39 |
Psychiatry shelf examination scores | 83.20 (6.82) | 84.22 (6.96) | 0.96 | .34 | 84.71 (7.98) | 1.41 | .16 |
Surgery shelf examination scores | 74.19 (8.05) | 74.80 (7.60) | 0.51 | .61 | 75.90 (7.88) | 1.39 | .17 |
Step 1 examination scores | 235.13 (17.61) | 241.70 (15.92) | 2.64 | .009 | 242.39 (15.65) | 2.97 | .003 |
Step 2 Clinical Knowledge examination scores | 242.57 (15.58) | 248.55 (15.33) | 2.55 | .01 | 247.83 (15.38) | 2.24 | .03 |
Abbreviations: 3YMD, 3-Year MD; 4YMD-S, 4-Year MD Student; 4YMD-G, 4-Year MD Graduate.
Note: Bolded results are significant (P<.05). Follow-up 2×3 analyses of variance (ANOVAs) did not find any significant differences in these scores by class year or in the interactions between class year and pathway. In all 4 ANOVAs, class year did not have a significant effect (Step 1: class year started with F=0.49, df=2, P=.68; class year graduated with F=0.18, df=2, P=.83. Step 2CK: class year started with F=0.71, df=2, P=.49; class year graduated with F=0.23, df=2, P=.79) and the class year by pathway (3YMD vs 4YMD) interaction was also not significant (Step 1: class year started with x pathway F=0.44, df=5, P=.65; class year graduated with x pathway F=0.83, df=5, P=.44. Step 2CK: class year started with by pathway F=0.44, df=5, P=.65; class year graduated with by pathway F=0.43, df=5, P=.65). Only the main effects of pathway were significant. Step 1 and Step 2 CK scores did not differ by class year and did not differ by the interaction between class year and pathway.
Independent samples t tests with P value (non-parametric tests of median differences produced same results).