For more than 50 years, the Wechsler IQ test has been administered to find the intellect of adults and children alike. This intelligence test is one of the most widely used in the evaluation of both children and adults. The current version of the adult test, the Wechsler Adult Intelligence Scale (WAIS), is in the fourth edition (i.e. WAIS-IV).
An intelligence quotient (IQ) is a total score derived from several standardized tests designed to assess human intelligence.The abbreviation "IQ" was coined by the psychologist William Stern for the German term Intelligenzquotient, his term for a scoring method for intelligence tests at University of Breslau he advocated in a 1912 book. Historically, IQ is a score obtained by dividing a ICD-10-PCS: Z01.8.
Alfred Binet and the History of IQ Testing until psychologist Alfred Binet was commissioned to identify students who needed educational assistance that the first intelligent quotient (IQ) test was born. Although it has its limitations, and it has many lookalikes that use far less rigorous measurements, Binet's IQ test is well-known around.