Myers' Psychology for AP®, 2e, Module 62

cohort

a group of people from a given time period. (p. 625)

crystallized intelligence

our accumulated knowledge and verbal skills; tends to increase with age. (p. 626)

Down syndrome

a condition of mild to severe intellectual disability and associated physical disorders caused by an extra copy of chromosome 21. (p. 629)

fluid intelligence

our ability to reason speedily and abstractly; tends to decrease during late adulthood. (p. 626)

intellectual disability

a condition of limited mental ability, indicated by an intelligence score of 70 or below and difficulty in adapting to the demands of life. (Formerly referred to as mental retardation.) (p. 629)