Results, student group 200
| Participant (even numbers = girls, uneven = boys: age, years) | Pre-test score (max = 7) | Pre-estimated Difficulty (max = 4) | Post-test score (max = 7) | Post-estimated Difficulty (max = 4) | Estimated level of joy (max = 4) |
|---|---|---|---|---|---|
| 201:12 | 4 | 0 | 3 | 0 | 0 |
| 202:13 | 2 | 0 | 4 | 0 | 4 |
| 205:12 | 2 | 0 | 4 | 0 | 0 |
| 207:15 | 7 | 0 | 7 | 0 | 4 |
| Total | 15(54%) | 0(0%) | 17(61%) | 0(0%) | 8(50%) |
| Participant (even numbers = girls, uneven = boys: age, years) | Pre-test score (max = 7) | Pre-estimated | Post-test score (max = 7) | Post-estimated | Estimated level of joy (max = 4) |
|---|---|---|---|---|---|
| 201:12 | 4 | 0 | 3 | 0 | 0 |
| 202:13 | 2 | 0 | 4 | 0 | 4 |
| 205:12 | 2 | 0 | 4 | 0 | 0 |
| 207:15 | 7 | 0 | 7 | 0 | 4 |
| Total | 15(54%) | 0(0%) | 17(61%) | 0(0%) | 8(50%) |
Note(s): Group 200 had a total of 15 correct answers in the pre-test (mean = 3.8. After the lesson, participating students got a total of 17 correct answers (mean = 4.3). The standard deviation was 2.4 in the pre-test and 1.9 in the post-test. Cohen's d = 0.231 (trivial effect size). Cohen's d was calculated using the formula: d = (M1 – M2) / SDpooled. The knowledge test indicated an improvement of 7% units
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