Charles Spearman's Belief That There Is a Factor of General

Multiple Choice

Charles Spearman's belief that there is a factor of general intelligence underlying all intelligent performance was based on his finding that

A) the performance of individuals on a variety of intelligence tests was highly correlated.
B) each individual domain has associated with it specific skills.
C) a person's performance on tests depended both on general intelligence and domain-specific abilities.
D) fluid intelligence and crystallized intelligence were relatively independent.