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Sarkari MCQs Government Exam Question Bank
Question no. 89385

Who theorized the existence of a general “g” factor regarding human intelligence?

Select your answer for: Who theorized the existence of a general “g” factor regarding human intelligence?
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Answer: D. Charles Spearman

Explanation

Charles Spearman proposed the general intelligence factor, known as g, based on statistical correlations. He observed that individuals who performed well on one cognitive test tended to excel on others. Spearman utilized factor analysis to demonstrate that a single underlying ability influences various mental tasks. Factor analysis is a statistical technique used to uncover relationships among multiple observed variables. General intelligence represents broad mental capacity spanning verbal, spatial, and logical reasoning domains. Spearman published his groundbreaking two-factor theory of intelligence during the early twentieth century.

Standardized intelligence tests like the Stanford-Binet provide scores that heavily reflect Spearman's g factor. Employers often use cognitive aptitude tests predicting job performance based on underlying general intelligence. Debates surrounding human intelligence continue to explore whether multiple distinct intelligences exist. Robert Sternberg developed the triarchic theory of intelligence, emphasizing analytical, creative, and practical abilities. David Wechsler designed widely used intelligence scales producing separate verbal and performance IQ scores. Louis Thurstone argued against a single g factor, proposing multiple primary mental abilities instead.

Subject
Psychology
Category
Psychology
Topic
—
Difficulty
medium

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