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Direct linkKanaya, Tomoe; Ceci, Stephen J.; Scullin, Matthew H. – Intelligence, 2005
Age differences within the yo-yo trend in IQ, caused when aging norms that produce inflated scores are replaced with new norms, were examined using longitudinal WISC, WISC-R and WISC-III records of students tested for special education services from 10 school districts. Descriptive and individual growth modeling analyses revealed that while the…
Descriptors: Norms, Intelligence Quotient, Age Differences, Trend Analysis
Peer reviewedGordon, Robert A. – Intelligence, 1997
Shows why the role of intelligence in everyday life is often underestimated, drawing an analogy that examines outcomes of life as analogs of items within classical test theory. In addition, a population-IQ model is explained that tests for the pooled effects of intelligence at individual, individual context, and population levels. (SLD)
Descriptors: Context Effect, Daily Living Skills, Individual Differences, Intelligence
