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 | Â |
 | 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 | Â |
 | 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 |