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Table 1 Performance on the examination: CD-ROM versus live lecture format

From: A randomized trial comparing digital and live lecture formats [ISRCTN40455708

  

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

  1. †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.
  2. ‡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.