FIGURE 9.14 Smart and rich? Jay Zagorsky (2007) tracked 7403 participants in the U.S. National Longitudinal Survey of Youth across 25 years. As shown in this scatterplot, their intelligence scores correlated +.30, a moderate positive correlation, with their later income. Each dot indicates a given youth’s intelligence score and later adult income.
Reprinted from Intelligence Vol 35 Zagorsky, J. L., Do you have to be smart and rich? The impact of I.Q. wealth, income and financial distress, 489–