Intelligence Study Notes

DEFINING INTELLIGENCE

  • Intelligence: The ability to solve problems, adapt, and learn from the environment.

  • Definition limitations: Debate over inclusion of interpersonal skills, memory, vocabulary, and novelty.

INTELLIGENCE THEORIES

  • Spearman's g factor: A single overall intelligence level influenced by external factors like health.

  • Sternberg's Triarchic Theory: Proposes three main levels of intelligence.

  • Gardner's Multiple Intelligences: Introduces various intelligences, challenging traditional views.

MEASURING INTELLIGENCE

  • Importance of measurement in comparing individuals' intelligence.

  • Intelligence Tests: Techniques for comparing individuals against age and culturally equivalent peers.

BINET-SIMON TEST

  • Developed by Alfred Binet and Theodore Simon for assessing children's mental skills.

  • Focus: Sentence generation, body part naming, memory for number strings.

SCORING BINET-SIMON TEST

  • Comparison of performance across age groups.

  • Mental Age (MA): Age indicated by the child's responses.

  • Chronological Age (CA): Actual age of the child.

STANFORD-BINET IQ TEST

  • Created by Lewis Terman, focusing on a broader age range and complex questions.

  • IQ formula: IQ=MACA×100IQ = \frac{MA}{CA} \times 100.

WECHSLER SCALES

  • Developed by David Wechsler, standardized scoring with average=100 and SD=15.

  • WAIS: For adults 16 and older.

  • WISC: For children.

INTELLIGENCE DIMENSIONS IN WECHSLER SCALES

  • Breakdown of intelligence into verbal and performance-based skills.

  • Efforts to limit cultural and language biases.

CULTURAL AND LANGUAGE VARIATIONS

  • New testing methods (e.g., Raven's matrices, Kohs block design) address cultural issues.

  • Focus: Controlling cultural bias in assessments.

HERITABILITY AND ENVIRONMENT

  • Heritability: Proportion of intelligence attributed to genetics versus environment.

  • Studies show strong genetic influence on intelligence, but environment significantly impacts.

  • Research on impoverished vs. enriched learning environments and their effect on intelligence.

FLYNN EFFECT

  • Notable increase in intelligence test performance globally over decades, with recent trends of slowing or reversal.