What does Jensen's theory suggest about test scores?

Jensen's theory primarily suggests that genetics plays a significant role in influencing test scores, particularly in relation to intelligence and cognitive ability. He proposed that individual differences in intellectual performance could be largely attributed to inherited traits rather than environmental factors. This view emphasizes that genetic factors contribute to the variability observed in test scores among different individuals.

Understanding this theory involves recognizing the interplay of genetics in cognitive development, which means that while environmental factors and educational opportunities can influence test scores, Jensen argued that the genetic predisposition is a fundamental component that underlies these differences. As a result, his work sparked considerable discussion and further research into both genetic and environmental contributions to intelligence and educational outcomes.