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Table 2 Test scores, follow-up groups

From: The acquisition and retention of ECG interpretation skills after a standardized web-based ECG tutorial–a randomised study

  Mean score (SD) Mean Δ score pre-test → post-test Mean Δ score post-test → retention-test Mean Δ score pre-test → retention-test
  Pre-test Post-test Retention-test    
Overall, N = 203 52.7 (16.8) 68.4 (12.3) 59.9 (8.6)* 15.7 (p < 0.001) −8.5 (p < 0.001) 7.2 (p < 0.001)
Short follow-up, N = 63 53.9 (15.9) 67.4 (12.3) 60.2 (8.3) 13.6 (p < 0.001) −7.3 (p < 0.001) 6.3 (p < 0.001)
Medium follow-up, N = 74 53.6 (17.6) 71.4 (12.0) 60.8 (8.9) 17.8 (p < 0.001) −10.6 (p < 0.001) 7.2 (p < 0.001)
Long follow-up, N = 66 50.6 (16.8) 66.1 (12.1) 58.6 (8.6) 15.4 (p < 0.001) −7.4 (p < 0.001) 8.0 (p < 0.001)
  1. *Pooled from follow-up intervals of all weeks (2–20 weeks).
  2. The mean test scores and standard deviations of the pre-test, post-test and retention-test are reported for the overall number of participants and for each of the follow-up groups. The mean delta scores between pre-test and post-test, post-test and retention-test and pre-test and retention-test, respectively, are presented with associated p-values.