Table 2.
Descriptive statistics and t-tests of gender differences in sport club attendance and sedentary activities
| Gender | Whole sample | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Boys | Girls | ||||||||
| Mean | SD | Mean | SD | t-value (df) |
p-value | Effect size a | Mean | SD | |
| Times per week attending sports clubs | 2.2 | 1.8 | 1.5 | 1.6 | 9.54 (1894.3) | < 0.001 | 0.4 | 1.9 | 1.8 |
| Hours per day watching television | 2.6 | 1.4 | 2.8 | 1.4 | 2.96 (1916) |
< 0.01 | 0.1 | 2.7 | 1.4 |
| Hours per day watching video/DVDs | 1.7 | 1.4 | 1.4 | 1.3 | 4.72 (1900.3) | < 0.001 | 0.3 | 1.6 | 1.4 |
| Hours per day playing video games (e.g. X-Box, Play-station) | 2.1 | 1.7 | 0.8 | 1.3 | 18.34 (1836.4) | < 0.001 | 0.9 | 1.5 | 1.6 |
| Hours per day spending in front of the computer | 2.1 | 1.7 | 2.0 | 1.6 | - | n.s. | - | 2.1 | 1.6 |
| Hours per day doing homework | 1.5 | 1.3 | 1.9 | 1.2 | 7.74 (1894.0) | < 0.001 | 0.3 | 1.7 | 1.3 |
| Hours per day talking on the phone | 1.3 | 1.5 | 1.7 | 1.5 | 5.02 (1897) |
< 0.001 | 0.3 | 1.5 | 1.5 |
| Hours per day listening to music | 2.3 | 1.7 | 2.6 | 1.6 | 4.00 (1894.0) | < 0.001 | 0.2 | 2.5 | 1.7 |
| Hours per day traveling in the car/bus/motorbike | 1.6 | 1.6 | 1.5 | 1.4 | - | n.s | - | 1.5 | 1.5 |
| Hours per day spent on screen-based sedentary activities | 8.5 | 4.8 | 7.1 | 4.0 | 6.88 (1825.7) |
< 0.001 | 0.3 | 7.7 | 4.5 |
| Hours per day spent on non-screen based sedentary activities | 5.2 | 3.8 | 5.8 | 3.5 | 3.41 (1856.2) |
< 0.01 | 0.2 | 5.4 | 3.6 |
a Effect sizes of the significant differences. Values of 0.2, 0.5, and 0.8 are interpreted as small, medium, and large effect sizes, respectively.