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Table 3 Number of correct MCQs from 11 questions, shown as adjusted mean (standard error)

From: Assessment of an electronic voting system within the tutorial setting: A randomised controlled trial [ISRCTN54535861]

Subject: Acute Abdominal Pain

Tutorial

Pre-Test

Immediate Post-Test

6 week Post-Test

Retention

No EVS

3.88 (0.24)

5.74 (0.23)

6.22 (0.27)

0.48 (0.28)

With EVS

3.91 (0.23)

5.59 (0.21)

5.89 (0.22)

0.30 (0.25)

difference

ns

ns

ns

ns

Subject: Gastrointestinal Haemorrhage

Tutorial

Pre-Test

Immediate Post-Test

6 week Post-Test

Retention

No EVS

4.79 (0.23)

7.60 (0.21)

6.51 (0.25)

-1.09 (0.27)**

With EVS

4.20 (0.25)

6.94 (0.22)

6.20 (0.23)

-0.74 (0.26)*

difference

ns

p= 0.03

ns

ns

  1. **p < 0.0001, pairwise comparison for difference over time (t-test)
  2. *p < 0.05, pairwise comparison for difference over time (t-test)