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Module 39
UNIT 5 The Dynamics of Intelligence
Term | Definition |
---|---|
cohort | a group of people sharing a common characteristic, such as from a given time period. |
crystallized intelligence | our accumulated knowledge and verbal skills; tends to increase with age. |
fluid intelligence | our ability to reason speedily and abstractly; tends to decrease with age, especially during late adulthood. |
cross-sectional study | research that compares people of different ages at the same point in time. |
longitudinal study | research that follows and retests the same people over time. |
intellectual disability | a condition of limited mental ability, indicated by an intelligence test score of 70 or below and difficulty adapting to the demands of life. |
Down syndrome | a condition of mild to severe intellectual disability and associated physical disorders caused by an extra copy of chromosome 21. |