The intelligence quotient (IQ) is a measure that was originally derived by the U.S. military in which the score on the ArmyAlpha test was divided by the score on the Army Beta test.

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Quizplus · Accepted Answer

While it is true that the IQ measure was originally developed by the U.S. military, it was not derived in the manner described in the statement. The IQ score is now calculated by comparing an individual's score on a standardized intelligence test to the scores of others in their age group.

The Intelligence Quotient (IQ) Is a Measure That Was Originally