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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
Hartmann, Peter; Reuter, Martin – Intelligence, 2006
Spearman's ''Law of Diminishing Returns'' with regard to ability is tested in a dataset from the National Longitudinal Study of Youth. The dataset consisted of a sample of 6980 children aged 12-16 from the 1997 cohort. The subjects were tested with a computer administrated adaptive format of the Armed Services Vocational Aptitude Battery…
Descriptors: Vocational Aptitude, Ability Grouping, Ability Identification, Children
