Table 1

Performance on the examination: CD-ROM versus live lecture format

Mean

SD

No.

p-value


Items from CAD and renal failure (lecture format the same for each group)

Live lecture

4.42

1.08

12

CD-ROM

4.88

2.00

17

t-test

0.22 (one-tailed)

Mann Whitney U

0.56 (exact test)

Levene's Test for equality of variances

0.026

Items from other four lectures (lecture format differed for control & treatment groups)

Live lecture

9.25

3.11

12

CD-ROM

9.00

2.72

17

t-test

0.41 (one-tailed)

Mann Whitney U

0.91 (exact test)

Levene's Test for equality of variances

0.96


The t-test was calculated based on unequal variances. Differences in variances were tested via a Levine test and found to be statistically different in the two groups.

The t-test was calculated based on equal variances. Differences in variances were tested via a Levine test and found not to be statistically different in the two groups.

Solomon et al. BMC Medical Education 2004 4:27   doi:10.1186/1472-6920-4-27

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