2012 BMI-2 | 2013 BMI-1 | 2013 BMI-2 | 2014 BMI-1 | |||||
---|---|---|---|---|---|---|---|---|
PRE | POST | PRE | POST | PRE | POST | PRE | POST | |
Number of students | 683 | 683 | 986 | 986 | 926 | 926 | 907 | 907 |
Mean % correct score ± SD | 26.3 ± 7.9 | 44.3 ± 13.3* | 43.0 ± 8.6 | 57.7 ± 10.3* | 27.5 ± 7.5 | 42.0 ± 11.0* | 43.7 ± 8.5 | 58.1 ± 10.5* |
95% Confidence interval | 25.7, 26.9 | 43.3, 45.3 | 42.5, 43.6 | 57.1, 58.4 | 27.0, 28.0 | 41.3, 42.7 | 43.2, 44.3 | 57.4, 58.8 |