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) |