Child gender | Child age | Mean | Standard deviation | Correlation | |||
8 | 10 | 12 | 14 | ||||
Girls | 8 | 22.1 | 1.9 | 0.88 | 0.86 | 0.84 | |
10 | 23.4 | 2.1 | 0.90 | 0.89 | |||
12 | 24.6 | 2.3 | 0.92 | ||||
14 | 25.7 | 2.6 | |||||
Boys | 8 | 22.1 | 2.5 | 0.56 | 0.57 | 0.57 | |
10 | 23.4 | 2.6 | 0.61 | 0.62 | |||
12 | 24.6 | 2.8 | 0.66 | ||||
14 | 25.7 | 3.0 |