What are the findings from cross-sectional studies on IQ that are no longer thought to be true?
A) Intelligence peaks in early adulthood, declines through middle adulthood, and drops steeply in late adulthood.
B) Intelligence varies by gender with males' IQ showing greater declines over time than females' IQ.
C) IQ scores increase into middle adulthood.
D) Intelligence varies by gender with females' IQ showing greater declines over time than males' IQ.

Question

Quizplus · Accepted Answer

Cross-sectional studies initially suggested that intelligence peaks in early adulthood and declines thereafter, but longitudinal studies have shown that some aspects of intelligence can remain stable or even improve into middle adulthood.

What Are the Findings from Cross-Sectional Studies on IQ That