Figure 3: MS4 delayed test performance to assess knowledge retention.
MS4 pre-tests (black) are compared to MS4 delayed tests (gray) to assess overall knowledge retention over a median period of 10.5–21 weeks, depending on the specific PALM. Statistically significant differences between MS4 pre-test and delayed test performance, indicated by "*", ranged from P=<0.0001 to 0.0003 and d=1.23 to 1.65. MS5 pre-test scores, indicated by the horizontal black bars, can also be compared to the MS4 delayed tests. Statistically significant differences between the MS4 delayed test and MS5 pre-test performance are indicated by "†" with values ranging from P=0.006 to 0.04 and d=0.95–1.3.