Table 3.
Comparison of scores based on presence or absence of a feature
| Present | Average score | Absent | Average score | p value | |
|---|---|---|---|---|---|
| Contains sophisticated special effects |
10 |
94.3 |
34 |
87.1 |
3.83 × 10e-7 |
| Contains at least one of either a pretest or posttest |
6 |
92 |
40 |
87.8 |
0.004 |
| Audience laughed during talk |
11 |
91 |
35 |
87.5 |
0.07 |
| Objectives or outline |
30 |
87.1 |
27 |
88.5 |
0.22 |
| Presentation was on time |
30 |
88.9 |
16 |
87.5 |
0.298 |
| Summary occurred during talk |
27 |
88 |
19 |
88.9 |
0.34 |
| Didactic lecture vs. unknown cases |
28 (didactic) |
88.6 |
16 (unknown) |
88.7 |
0.95 |
| Questions for audience | 8 | 88.3 | 38 | 88.4 | 0.95 |
46 talks with video, 44 talks with DI images.
44 talks with images.