What is the evidence in favor of a g factor in intelligence?
A)IQ scores correlate more highly for monozygotic twins than dizygotic twins.
B)Immigrants who are still learning English do better on Raven's Matrices than other tests.
C)The people who do well on one test usually do well on other tests also.
D)Brain size has a low but positive correlation with scores on IQ tests.

Question

​What is the evidence in favor of a g factor in intelligence?
A)IQ scores correlate more highly for monozygotic twins than dizygotic twins.
B)​Immigrants who are still learning English do better on Raven's Matrices than other tests.
C)​The people who do well on one test usually do well on other tests also.
D)​Brain size has a low but positive correlation with scores on IQ tests.

Quizplus · Accepted Answer

The correlation between scores on different tests of intelligence is consistent with the existence of a g factor, or general intelligence factor. This means that individuals who perform well on one type of intelligence test tend to perform well on others. This suggests that there may be an underlying cognitive ability, or g factor, that contributes to performance on a variety of cognitive tasks. The other answer choices may provide some evidence for intelligence, but do not specifically support the existence of a g factor.

​What Is the Evidence in Favor of a G Factor

What Is the Evidence in Favor of a G Factor