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Reynolds, Cecil R.; Niland, John; Wright, John E.; Rosenn, Michal – Journal of Psychoeducational Assessment, 2010
The Flynn Effect is a well documented phenomenon demonstrating score increases on IQ measures over time that average about 0.3 points per year. Normative adjustments to scores derived from IQ measures normed more than a year or so prior to the time of testing an individual have become controversial in several settings but especially so in matters…
Descriptors: Intelligence Tests, Age Differences, Change, Test Norms