Two days of lectures 1 month apart | No | Mean (SD) 95% CI | 11 (2.8) (9.8 to 12.1) | 11.4 (5.1) (9.3 to 13.5) | 21.6 (5.4) (19.4 to 23.9) | 16.8 (4.2) (15 to 18.5) |
Yes | Mean (SD) 95% CI | 11.8 (4.1) (10.1 to 13.4) | 12 (4) (10.4 to 13.6) | 23.4 (8.4) (20 to 26.7) | 19.9 (7.3) (17 to 22.8) |
Two days of lectures 2 months apart | No | Mean (SD) 95% CI | 12.8 (4.6) (10.9 to 14.6) | 11.6 (4.2) (9.8 to 13.3) | 23.5 (6.9) (20.6 to 26.3) | 16.6 (5) (14.5 to 18.6) |
Yes | Mean (SD) 95% CI | 11.7 (2.7) (10.6 to 12.9) | 12.2 (3.4) (10.8 to 13.6) | 23.6 (5.6) (21.3 to 25.9) | 18.7 (4.7) (16.7 to 20.6) |
Two days of lectures 3 months apart | No | Mean (SD) 95% CI | 13.3 (6.7) (10.9 to 15.8) | 13.6 (5.6) (11.6 to 15.7) | 23.2 (11.4) (18.9 to 27.4) | 17.7 (6.7) (15.2 to 20.2) |
Yes | Mean (SD) 95% CI | 13.3 (4.4) (11.4 to 15.2) | 12 (3.6) (10.4 to 13.5) | 25.2 (10.3) (20.7 to 29.7) | 19.8 (6.5) (16.9 to 22.6) |
Material only | No | Mean (SD) 95% CI | 14.7 (7.6) (11.3 to 18) | 12,9 (5.7) (10.4 to 15.4) | 24.5 (14.2) (18.3 to 30.8) | 21.8 (13.3) (16 to 27.7) |
Yes | Mean (SD) 95% CI | 12.8 (3.6) (11.3 to 14.4) | 12.4 (3.6) (10.9 to 13.9) | 21.6 (7) (18.6 to 24.6) | 18.2 (6) (15.6 to 20.7) |