Measures of verbal intelligence and abstract reasoning were taken on a group of 31 college-aged and 32 elderly adults, together with mental-processing rates associated with choice reaction time, primary memory scanning, and lexical decoding. Group means showed that verbal IQ and lexical decoding were intact in the elderly subjects. (Author/LMO)

It is often the case that intelligence tests do not measure what they purport to measure, although it is commonly assumed that every test with a different name is a test of different skills, and that tests with the same name test the same skills. Spearman attempted to study the relationship between tests that supposedly measured different mental…

Recent theorists have begun to re-conceptualize the construct of "intelligence." This paper reviews recent theories of intelligence and indicates implications for practitioners, educators, and individuals. Theories and theorists discussed include the following: (1) Robert Sternberg has advanced the "triarchic theory" of…