Intelligence and Achievement

learning_notes

Last updated: 8/16/2025

Generalized intelligence (g factor; Spearman) vs. Multiple intelligences (Visual-spatial, Linguistic-verbal, Logical-mathematical, Body-kinesthetic, Musical, Interpersonal, Intrapersonal, Naturalistic; Gardner)

Abstract/Verbal Measures of Intelligence

  • Alfred Binet: early intelligence testing, invented IQ to identify student needs for teaching
  • Intelligence quotient (IQ*) = mental age/chronological age * 100
  • Factor analysis: research method to find out what responses/traits/abilities are "clusters"; Raymond Cattell

Speed of Processing

  • Fluid vs Crystallized intelligence: ability to solve new problems vs accumulated experience; Raymond Cattell

Emotional intelligence: the ability to be aware of, identify and control your own/other's emotions

Heredity vs Environment: both influence intelligence; heritability

Flynn effect: intelligence slowly increases through generations because of education

Standardized Tests

  • Normed; renorming
  • Reliability (test-retest, split-half, interrater)
  • Validity: face validity, content validity, construct validity, criterion-related/predictive validity
  • Achievement vs Aptitude Test: knowledge (e.g. AP) vs prediction of performance (e.g. SAT)

Growth mindset vs fixed mindset: belief about whether intelligence is fixed from birth or malleable due to experience can affect academic achievement

Stereotype threat: intelligence performance can decrease because of activated stereotype

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