Group | N | Pretest | Posttest | Mean Gain | Mean Gain Variation | ||
| SD |
| SD | ||||
Puzzle | 108 | 14.08 | 5.55 | 71.85 | 12.73 | 57.77 | 6.95 |
Lecture | 89 | 14.75 | 5.69 | 65.57 | 13.62 | 50.82 |