Fig. 3

Relationships in participants’ performance among all tasks. Each color-coded circle represents one task. From the top counter-clockwise: Unstable Towers Task, Paper Folding Test, Mental Rotation Test, verbal working memory task, spatial working memory task. The width of each connecting line is scaled to represent the strength of the correlation between individual differences on each pair of tasks. All r values are from Pearson correlation tests in 100 participants. All correlations were statistically significant at an alpha level of .05 except for the comparisons of the Unstable Towers task to the verbal and spatial working memory tasks, for which the p values were both greater than 0.3. While performance on the Unstable Towers task was significantly correlated with performance on each of the spatial cognition measures, the split-half reliability of the towers task was greater than its correlation with either spatial measure