Theories of Intelligence

Overview

Intelligence is one of the most frequently tested topics in the Child Development and Pedagogy section of Assam TET. Understanding different theories helps teachers recognise that students possess varied cognitive abilities—not a single "smartness" that can be ranked on one scale. This directly impacts classroom practice: a teacher who knows Gardner's theory, for instance, will design activities that tap musical, bodily-kinesthetic or interpersonal strengths, not just verbal-logical skills.

For the exam, expect 2–4 questions asking you to match theorists with their models, identify the number of factors in a theory, or apply a theory to a classroom scenario. Mastery requires knowing (a) the core idea of each theory, (b) the key terms (g-factor, s-factor, primary mental abilities, multiple intelligences), and (c) educational implications.

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Key Concepts

• **Intelligence is not unitary for all theorists.** Some see it as one general ability; others see it as many independent abilities. This debate shapes how we test and teach.

• **Spearman's Two-Factor Theory (1904):** Intelligence comprises a general factor (g) common to all tasks and specific factors (s) unique to each task. High g means you tend to do well across subjects.

• **Thorndike's Multifactor Theory (1920s):** Intelligence is a bundle of many independent, specific abilities (S-O-A-C model). There is no overarching g; abilities like social intelligence, mechanical intelligence and abstract intelligence operate separately.

• **Thurstone's Primary Mental Abilities (1938):** Identified seven distinct factors—Verbal Comprehension, Word Fluency, Number Facility, Spatial Visualisation, Associative Memory, Perceptual Speed, and Reasoning. No dominant g; each ability can be measured and trained.

• **Gardner's Multiple Intelligences (1983):** Proposed at least eight intelligences (later added a ninth). Each intelligence is a separate "module" in the brain; traditional IQ tests capture only two or three.

• **Educational implication across theories:** If intelligence is multidimensional, schools must diversify teaching methods and assessment to honour different learner profiles.

• **Nature vs. nurture:** All theorists accept that both heredity and environment shape intelligence, but they differ on how malleable each factor is.

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Key Facts & Definitions

| Theorist | Theory Name | Core Idea | Key Term(s) | |----------|-------------|-----------|-------------| | Charles Spearman | Two-Factor Theory | One general factor (g) + many specific factors (s) | g-factor, s-factor | | E. L. Thorndike | Multifactor / S-O-A-C Theory | Many independent abilities; no g | Social, Abstract, Mechanical intelligence | | L. L. Thurstone | Primary Mental Abilities (PMA) | Seven primary factors, roughly equal in importance | V, W, N, S, M, P, R | | Howard Gardner | Multiple Intelligences (MI) | Eight (or nine) distinct intelligences | Linguistic, Logical-Mathematical, Musical, Bodily-Kinesthetic, Spatial, Interpersonal, Intrapersonal, Naturalistic (+ Existential) |