0 • A • B • C • D • E • F • G • H • I • J • K • L • M • N • O • P • Q • R • S • T • U • V • W • X • Y • Z
A Norm group is a group of people who were tested to produce the norms for a test. These tests are very expensive and for important tests (like the IQ-tests) the tests (questions and much more the answers) are kept "top secret".