The document discusses several theories of intelligence, including:
1. Spearman's theory of general intelligence ("g") and specific abilities, which used factor analysis and proposed one general intelligence underlying specific mental abilities.
2. Thurstone's theory of seven primary mental abilities identified through factor analysis.
3. Gardner's theory of multiple intelligences, which proposed at least seven distinct intelligences including linguistic, logical-mathematical, spatial, musical, bodily-kinesthetic, interpersonal, and intrapersonal.
4. Sternberg's triarchic theory of intelligence, which proposed analytical, creative, and practical intelligences.
5. Mayer and Salovey's theory of emotional intelligence (