How does your text explain the positive correlation between intelligence test scores and brain volume?
A)A larger brain produces higher intelligence.
B)Environmental variables like childhood nutrition are related to both intelligence and brain size.
C)Intellectual activity increases the size of the brain.
D)The correlation is largely an artifact of the statistical techniques used in meta-analyses.

Question

Quizplus · Accepted Answer

The text suggests that there is a positive correlation between brain volume and intelligence test scores because environmental factors like childhood nutrition are related to both brain size and intelligence. This implies that factors beyond just brain size determine intelligence, and that a variety of factors influence brain size beyond intellectual activity. Therefore, option A and C are not correct, and there is no mention of D.

How Does Your Text Explain the Positive Correlation Between Intelligence