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Direct linkRodgers, Joseph Lee; Wanstrom, Linda – Intelligence, 2007
The Flynn Effect [Flynn, J. R. (1984). The mean IQ of Americans: Massive gains 1932 to 1978. Psychological Bulletin 95, 29-51.] is an increase in IQ of around 0.33 points per year, observed in developed (and some developing) countries during the past century. It emerges from problem solving and other non-verbal components of IQ. The cause has been…
Descriptors: Identification (Psychology), Intelligence Quotient, Children, Theories
Peer reviewedRobinson, Nancy M.; And Others – Intelligence, 1990
The validity of the fourth edition of the Stanford-Binet (S-B IV) test was studied with 30 linguistically precocious children at ages 20, 24, and 30 months. Validity at 24 months was questionable. Problems in using the test with very young children are discussed. (SLD)
Descriptors: Age Differences, Child Development, Cognitive Processes, Intelligence Tests
