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In Charles Spearman's two-factor theory, what does the g-factor refer to?
AA general factor common to all mental performances
BA specific factor unique to one mental performance
CA general factor present only in verbal abilities
DA specific factor present only in musical talent
Answer & Solution
Correct answer: A. A general factor common to all mental performances
1. In 1927, Charles Spearman proposed a two-factor theory using factor analysis.
2. He concluded intelligence consists of a general factor and several specific factors.
3. The general factor is named g-factor.
4. The g-factor includes mental operations that are primary and common to all performances.
5. Distractor 2 describes the s-factors, which are domain-specific.
6. Hence the g-factor is the general factor common to all performances.
_Source: NCERT Class 12 Psychology Ch 1 "Variations in Psychological Attributes", p. 6, Theories of Intelligence_
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