Definition of Intelligence quotient
Intelligence quotient: An attempt to measure the intelligence of someone. Abbreviated IQ. The IQ score is usually based upon the results of a written test. To calculate the IQ, the person's mental age as determined by a test is divided by chronologic age, and the result is multiplied by 100.
See also intelligence test; intelligence, non-verbal; intelligence, verbal.
Last Editorial Review: 4/27/2011 5:27:15 PM
Back to MedTerms online medical dictionary A-Z List
Need help identifying pills and medications?
Get the latest health and medical information delivered direct to your inbox FREE!