Table 2 Means and standard deviations of test performance in doctors under investigation compared to volunteer doctors
Mean score knowledge test | Mean score overall OSCE | Mean score basic life support | Mean score communication | Mean score physical examination | |
|---|---|---|---|---|---|
Doctors under investigation (n = 95) | 77(SD = 16.9) | 327 (SD = 96.8) | 22(SD = 14.7) | 27(SD = 13) | 27(SD = 13.3) |
Volunteer doctors (n = 376) | 80(SD = 10.9) | 437 (SD = 31.7) | 35(SD = 6.5) | 36(SD = 6.8) | 37(SD = 5.4) |
T-test | t(469) = −2.3, p = 0.02 | t(469) = 18.5, p < 0.001 | t(469) = −13.6, p < 0.001 | t(469) = −9.6, p < 0.001 | t(469) = −12.1, p < 0.001 |
Standardized mean differences | Cohen’s d = −0.21 | Cohen’s d = −1.53 | Cohen’s d = −1.14 | Cohen’s d = −0.87 | Cohen’s d = −0.99 |
Effect size r = −0.1 | Effect size r = −0.61 | Effect size r = −0.5 | Effect size r = −0.4 | Effect size r = −0.44 |