Who proposed the 'Two-Factor Theory' of intelligence?
Detailed Explanation & Solution
📌 Core Theoretical Concept:
The 'Two-Factor Theory' of intelligence was proposed by the prominent British psychologist Charles Spearman in 1904. According to Spearman, human cognitive abilities are comprised of two distinct factors: the General factor (G-factor) and the Specific factor (S-factor). The G-factor represents innate, universal general mental energy that is applied across all cognitive tasks, while the S-factor represents acquired, domain-specific abilities required for specialized tasks such as painting, playing music, or mathematical computations. Therefore, option (b) is the correct answer as Charles Spearman is the pioneer of this foundational factor-analytic model of intelligence.
📊 Key Exam Points:
- G-Factor (General Factor): Innate, constant across tasks, and acts as the bedrock of general mental operations.
- S-Factor (Specific Factor): Learned, variable, and distinct to particular skills or training experiences.
- Distractor Analysis: Howard Gardner proposed the Theory of Multiple Intelligences; J.P. Guilford is famous for the Structure of Intellect (SI) model; Alfred Binet pioneered early intelligence testing and single-factor concepts.
📖 Theoretical Reference: Spearman's theory laid the mathematical groundwork using factor analysis in educational psychology. To explore related cognitive paradigms, check Piaget's Cognitive Development and intelligence frameworks.
🎯 Exam Perspective: Key Insights for Teacher Exams Detailed Solution ➔
In competitive examinations like CTET, UPTET, and teaching recruitment tests, questions on intelligence factors frequently appear. Understanding that Spearman viewed 'G' as fixed and unchangeable through training, whereas 'S' can be cultivated through practice, helps educators tailor differentiated learning environments. Teachers should nurture both general academic competencies and specialized talents to foster holistic student development within inclusive classrooms.