Question

Which of the following best describes the main difference between Spearman's theory and Thurstone's theory?

a. Spearman proposed the existence of a general intelligence factor (g), while Thurstone emphasized multiple primary mental abilities.
b. Thurstone proposed that intelligence could not be measured, while Spearman developed intelligence tests.
c. Spearman focused on practical intelligence, while Thurstone emphasized theoretical intelligence.
d. Thurstone proposed that intelligence was entirely hereditary, while Spearman believed in the importance of environmental factors.

Answer 1

Spearman theorized a single, general intelligence factor (g), while Thurstone posited multiple primary mental abilities as constituting intelligence.

Step-by-step explanation:

The main difference between Spearman's theory and Thurstone's theory of intelligence lies in their differing views on the structure of intelligence. Spearman proposed a single, general intelligence factor, known as g, which he believed could be measured and compared among individuals. This g factor was thought to be responsible for overall cognitive ability. In contrast, Thurstone emphasized the existence of multiple primary mental abilities. He theorized that intelligence comprises several distinct dimensions that could be independently assessed and were not necessarily dominated by a single, general factor.In short, the correct answer to the question is: a. Spearman proposed the existence of a general intelligence factor (g), while Thurstone emphasized multiple primary mental abilities.