Table 3.

Females: percentage of variance explained by PCI

Age & Ability group	Sample A: PC1	Sample B: PC1
7 Low	45.61	45.97
7 High	40.87	40.21
9 Low	51.88	51.95
9 High	50.27	52.36
10 Low	55.91	49.43
10 High	48.86	48.83