The theory of intelligence that was promoted by Charles Spearman was the a - Two-Factor Theory. He advocated this theory because judging from his statistical analysis that was based on the data he had at the time, he proposed that a two-factor solution for intelligence was the best one.
This theory of intelligence was promoted by Charles Spearman. a. Two-Factor Theory c. Theory of Multiple Intelligences b. Theory of Mental Capacity d. Emotional Intelligence Theory