Table 2.
Statistical Analysis of the Five Tests Used in This Study
| Test data | Pre‐course test | Post‐course test | Activities during the return day | Long‐term retention test | |
|---|---|---|---|---|---|
| Pre‐repetition test | Post‐repetition test | ||||
| MC‐questions (N) | 40 | 40 | 40 | 40 | 40 |
| Participants (N) | 180 | 88 | 88 | 62 | 180 |
| Cronbach’s alphaa | −0.022 | 0.634 | 0.456 | 0.652 | 0.505 |
| Score, mean (±SD) | 14.79 (±2.94) | 26.99 (±4.31) | 20.53 (±4.07) | 29.21 (±4.33) | 20.39 (±4.10) |
| Score%, mean (±SD) | 40.97 (±7.35) | 67.47 (±10.77) | 51.32 (±10.17) | 73.02 (±10.82) | 50.97 (±10.25) |
that all tests consisted of the same 40 questions, but in a different order.
a
Cronbach’s alpha 0.5–0.6 = poor reliability; 0.6–0.7 = moderate; 0.7–0.8 = acceptable; 0.8–0.9 = good. The time between the post‐course test and the return day was 14 weeks. The time between the return day and the long‐term retention test was also 14 weeks; MC‐questions: multiple‐choice questions.