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Understanding Age-Related Changes in Intelligence: A Comprehensive Study

Explore the effects of aging on intellectual performance through a longitudinal study examining stability and decline. Discover the impact of distinct skills like crystallized and fluid intelligence on cognitive abilities. Also, learn how social contacts can potentially reduce the onset of Alzheimer's disease.

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Understanding Age-Related Changes in Intelligence: A Comprehensive Study

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  1. By Mark Piazza Sibley Bardales Stephanie Townley 11-4Aging and Intelligence

  2. Phase 1: Cross-Sectional Evidence for Intellectual Decline

  3. Phase 2:Longitudinal Evidence for Intellectual Stability • Longitudinal study: research in which the same people are restudied or retested over a long period • Several psychologists studied intelligence longitudinally to entering college students in 1920 • They found that their intelligence remained stable until late in life • The problem with cross sectional studies was that it compared 70 year olds and 30 year olds who are from a different era, different sized families, and better or less affluent families

  4. Phase 3: It All Depends • Intellectual performance an increase or decrease depending on how we assess it. • Research has found that intelligence isn’t a single trait but distinct skills and abilities. • Intellectual performance increases or decreases with age depending on what you measure. • Crystallized intelligence is one’s accumulated knowledge as reflected in vocabulary and analogies tests - it increases with age. • Fluid intelligence is ones ability to reason speedily and abstractly, as when solving logic problems – decreases with age. • Fun fact - having social contacts has shown to decrease the onset of Alzheimers.

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