Mean score difference from pre-test to post-test for control and treatment schools in phase III
| Grade 1 | Grade 2 | Grade 3 | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Unit | Control | Treatment | p Value (No of test items) | Control | Treatment | p Value (No of test items) | Control | Treatment | p Value (No of test items) |
| The test instrument was administered one week before and one week after the six week teaching period in 33 classrooms (n=735 students) in four schools in the treatment group and in 31 classrooms (n=665 students) in four schools in the control group. The mean score difference is the mean post-test score minus the pre-test (baseline) score. | |||||||||
| MV, motor vehicle. | |||||||||
| Overall | 8.6 | 19.5 | 0.0002 (15) | 3.7 | 16.8 | 0.0001 (16) | 5.9 | 22.2 | 0.0011 (19) |
| Brain and spinal cord | 2.2 | 20.5 | 0.0003 (3) | 0.4 | 14.0 | 0.0037 (3) | 9.8 | 29.1 | 0.0001 (5) |
| Water safety | 8.9 | 27.6 | 0.0008 (3) | 4.6 | 26.8 | 0.0001 (3) | 1.3 | 14.1 | 0.0489 (5) |
| Bike safety | 7.1 | 13.4 | 0.07 (3) | 7.9 | 12.8 | NS (3) | 5.2 | 23.8 | 0.02 (3) |
| MV/pedestrian safety | 21.2 | 27.7 | NS (3) | −2.3 | 8.3 | 0.0143 (5) | 7.2 | 25.3 | 0.0134 (3) |
| Playground/sports safety | 9.2 | 10.7 | NS (2) | ||||||
| Conflict/weapons safety | 5.8 | 7.9 | NS (1) | 6.0 | 5.5 | NS (2) | 6.8 | 19.0 | 0.0237 (3) |