Table 1

Percentage correct, paired t-tests and effect sizes (Cohen's d), for 39-health professional's performance on their knowledge test before (pre-test) and after (post-test) the course

Track

N*

# of questions

Pretest mean % (SD)

Posttest mean % (SD)

Within SD

t ±

Cohen's d


BIO

21

20

33.6 (10.4)

51.2 (13.1)

11.8

5.7

1.49

MI

18

20

49.7 (17.0)

59.7 (15.2)

16.1

3.7

0.62


* N represents number of symposium participants who completed both the pre- and posttests.

± All t-tests are significant at P < 0.05 (two-tailed tests).

Curioso et al. BMC Medical Education 2008 8:1   doi:10.1186/1472-6920-8-1

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