Psychological tests for intelligence are based on a number of theories about intelligence that have been developed over the last century or so. In the 1920s, a psychologist proposed that intelligence is a single factor (termed the g factor), rather than being composed of more than one type. Which psychologist presented this theory?
A)Spearman
B)Thurstone
C)Cattell
D)Carroll

Question

Quizplus · Accepted Answer

Spearman was responsible for the initial theory of g factor intelligence. Other researchers investigated and expounded on his idea, adding subtypes to the idea of singular intelligence.

Psychological Tests for Intelligence Are Based on a Number of Theories