Charles Spearman inferred the existence of a g factor in intelligence from what observation?
A)Most people who do well on one intellectual test also do well on other tests.
B)Most people's scores on IQ tests are consistent from one time to another.
C)People's IQ scores correlate highly with those of their close relatives.
D)People's IQ scores correlate highly with measurements of their brain volume.

Question

Charles Spearman inferred the existence of a g factor in intelligence from what observation?​
A)Most people who do well on one intellectual test also do well on other tests.
B)​Most people's scores on IQ tests are consistent from one time to another.
C)​People's IQ scores correlate highly with those of their close relatives.
D)​People's IQ scores correlate highly with measurements of their brain volume.

Quizplus · Accepted Answer

Spearman observed that individuals who performed well on one type of intellectual task tended to perform well on other types of intellectual tasks. This led him to propose the existence of a general factor or g factor that influences performance on all types of cognitive tasks.

Charles Spearman Inferred the Existence of a G Factor in Intelligence