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ON ABSTRACTION: A SOCIOLOGICAL ANALYSIS.
註釋There are two broad lines of thought concerning adult intellectual development: (1) that intelligence declines rather early and linearly in adulthood, and (2) that general intelligence is quite stable in adulthood. This study examines the relationship between age and abstraction (a component of intelligence that, unlike the latter concept, escapes the reification criticism) and finds that although older people tend to score lower on abstraction (r = $-$.30), fully one half of this relationship is due to