Table 3.
Test scores, junior and senior students
| Mean score (SD) | Mean Δ score pre-test → post-test | Mean Δ score post-test → retention-test | Mean Δ score pre-test → retention-test | |||
|---|---|---|---|---|---|---|
| Pre-test | Post-test | Retention-test* | ||||
| Junior students, N = 84 | 45.5 (15.7) | 62.0 (10.6) | 56.2 (9.8) | 16.5 (p < 0.001) | −5.8 (p < 0.001) | 10.7 (p < 0.001) |
| Senior students, N = 119 | 57.8 (15.8) | 72.9 (11.4) | 62.5 (6.6) | 15.1 (p < 0.001) | −10.5 (p < 0.001) | 4.7 (p < 0.001) |
*Pooled from follow-up intervals of all weeks (2–20 weeks).
The mean test scores and standard deviations of the pre-test, post-test and retention-test are reported for junior and senior students. The mean delta scores between pre-test and post-test, post-test and retention-test and pre-test and retention-test, respectively, are presented with associated p-values.