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Comparison of post-test intervention group curriculum mean scores to comparison group mean scores
| Grade | Comparison (N = 69) | Intervention post-test (N = 167) | Mean percent difference | p valuea |
|---|---|---|---|---|
| Mean (95% CI) | Mean (95% CI) | |||
| 4th grade | 12.4 (11.1, 13.7) | 15.7 (15.2, 16.3) | 26.6 | <0.001 |
| 5th grade | 13.0 (11.7, 14.2) | 16.3 (15.6, 16.9) | 24.4 | <0.001 |
| Both grades | 12.7 (11.8, 13.6) | 16.0 (15.6, 16.4) | 26.0 | <0.001 |
Unit assessment test—score out of possible 20 points
aIndependent t test
