IQ tests can measure language, processing, memory, and reasoning. Your score tends to remain consistent from childhood to adulthood. IQ stands for intelligence quotient. IQ tests are tools to measure ...

American IQ test scores have dropped during a recent 13-year period, a remarkable finding that runs counter to the well-established trend of increasing IQ scores throughout much of the 20th century.

Schools have historically used IQ scores in the placement of students on programs or to identify students with mental difficulties. However, IQ scores and tests are no longer the only measure of a ...