Group | Boys (n=72) | Girls (n=73) | Correlation coefficient | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
n | % | Age (years) | CTR | Correlation coefficient | n | % | Age (years) | CTR | ||||||||
Mean | SD | Mean | SD | r | Sig*. | Mean | SD | Mean | SD | r | Sig*. | |||||
I | 20 | 27.8 | 5.74 | 0.84 | 2.881 | 0.51 | −0.747 | 0.000 | 18 | 24.7 | 5.63 | 0.75 | 2.969 | 0.70 | −0.710 | 0.001 |
II | 18 | 25 | 8.52 | 0.73 | 2.00 | 0.16 | −0.682 | 0.002 | 20 | 27.4 | 8.71 | 0.94 | 1.882 | 0.20 | −0.644 | 0.002 |
III | 19 | 26.4 | 11.53 | 0.85 | 1.550 | 0.20 | −0.533 | 0.019 | 18 | 24.7 | 11.37 | 0.79 | 1.519 | 0.11 | −0.798 | 0.000 |
IV | 15 | 20.8 | 13.99 | 0.59 | 1.244 | 0.20 | −0.747 | 0.001 | 17 | 23.3 | 13.87 | 0.63 | 1.154 | 0.14 | −0.851 | 0.000 |
Total | 72 | 100 | 9.68 | 3.17 | 1.97 | 0.69 | −0.916 | 0.000 | 73 | 100 | 9.81 | 3.13 | 1.892 | 0.77 | −0.886 | 0.000 |