Fig. 4: External validity.

Phenotypic correlations between Pathfinder g, verbal and nonverbal composites and cognitive (A–C), achievement (D–F) and family socioeconomic status (G–I) measures over development. vb verbal ability, nv nonverbal ability, ach academic achievement, ses family socioeconomic status. The numbers following each variable name indicate age in years. The length of each bar represents the size of the correlation and the error bars indicate 95% confidence interval (CIs).