A norm-referenced test is a standardized
testing instrument in which the test-taker’s
performance is interpreted in relation to the
performance of a group of peers who have
previously taken the same test. This group
of peers is known as the ‘norming’ group. A
standardized intelligence test, for example,
yields a result called an Intelligence
Quotient (IQ). The quotient represents
the ratio of a person’s mental age to their
chronological age, multiplied by 100.