IQ Glossary

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Wechsler Adult Intelligence Scale (WAIS)
WAIS is a general test of intelligence (IQ), published in February 1955 as a revision of the Wechsler-Bellevue test (1939), standardised for use with adults over the age of 16.

Intelligence is quantified as the global capacity of the individual to act purposefully, to think rationally, and to deal effectively with his environment. The full scale IQ is broken down into 14 subtests, comprising the verbal (7 subtests) and performance scales (7 subtests).