Summary of all penalties in control and experimental groups before and after intervention. Penalties are recorded as mean (SEM) number of penalties per group per 1000 player hours
Control (mean penalties per 1000 player hours (SEM)) | Experimental (mean penalties per 1000 player hours (SEM)) | |||
---|---|---|---|---|
Before survey | After survey | Before video | After video | |
*p<0.05, Student’s t test, comparing before/after results in each group. | ||||
Roughing | 107.5 (2.5) | 102.3 (11.4) | 89.4 (36.3) | 98.4 (22.3) |
Tripping | 62.5 (2.5) | 62.5 (17,0) | 66.6 (22.0) | 26.1 (10.8) |
Interference | 50 (5.0)* | 28.4 (5.7)* | 53.9 (14.5) | 48.4 (17.2) |
Slashing | 32.5 (22.5) | 39.7 (5.7) | 44.8 (20.4) | 35.9 (5.3) |
Elbowing | 27.5 (2.5) | 22.7 (11.4) | 26.9 (7.2) | 17.7 (2.6) |
Checking from behind | 22.5 (12.5) | 34.1 (0.0) | 38.4 (3.7)* | 7.6 (0.69)* |
Other | 17.5 (2.5) | 22.7 (22.7) | 17.6 (14.1) | 8.9 (8.9) |
High sticking | 15.0 (0) | 11.4 (11.4) | 24. (13.7) | 19.3 (10.4) |
Holding | 12.5 (2.5)* | 22.7 (0.0)* | 12.5 (2.8) | 18.7 (9.4) |
Hooking | 10 (5.0) | 11.4 (0.0) | 27.8 (3.1) | 23.1 (5.0) |
Charging | 5.0 (0.0) | 5.7 (5.7) | 10.9 (2.4) | 4.9 (4.9) |
Cross checking | 5.0 (5.0) | 11.0 (11.4) | 23.7 (1.3)* | 13.0 (3.4)* |
Unsportsmanlike conduct | 2.5 (2.5) | 0.0 (0.0) | 9.8 (6.8) | 4.9 (4.9) |
Boarding | 2.5 (0.0) | 11.4 (0.0) | 10.6 (1.7) | 7.1 (4.3) |
Fighting | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) |
Spearing | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) |