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IQ is a score derived from special standardized tests designed to assess intelligence.
The term "IQ" was initially suggested by the German psychologist William Stern (1912).
The scoring of modern IQ tests is based on a projection of the individual's measured rank on the Gaussian bell shaped curve - where the center value (average) is 100, and the standard deviation is around 15.
Factors associated with IQ Scores:
Morbidity and mortality
Parental social status
Parental IQ.
Controversy about how much IQ is inheritable.
IQ Score Uses:
Predictor of educational achievement.
Predictor of special needs
Social science tool - predicting job performance and income.
Flynn Effect:
Average IQ scores for many populations have been rising.
IQ score inflation is at around a rate of three points per decade.
Most improvement has been in the lower half of the IQ range.
There is some argument about whether these changes in scores reflect real changes in intellectual abilities.
Tags: Flynn Effect - Intelligence Quotient - IQ - William Stern -