Final answer:
Research suggests a correlation between temperament and intelligence, with children with easy temperaments generally scoring higher on intelligence tests. However, one study found that those with difficult temperaments had the highest average intelligence scores.
Step-by-step explanation:
Research examining the relationship between temperament and intelligence suggests that there is a correlation between temperament and intelligence, although the nature of this relationship is complex.
Several studies have found that children with easy temperaments tend to have an advantage when it comes to scores on intelligence tests.
Contrary to expectations, one study found that those with difficult temperaments had the highest average intelligence scores.