Item Response Theory (IRT) - Psychometric Glossary
A theory that outlines the method for designing, analysing, and scoring tests aimed at measuring a subject's aptitude, attitude or ability. The purpose of item response theory is to make testing more accurate and efficient. It also allows the use of sophisticated online test delivery mechanisms.
See also:
Other articles:
Inductive Reasoning, Industrial Psychology or I/O Psychology, Intelligence Test, Internship, In-tray Exercise, Inventory, Ipsative Test, IQ Test (Intelligence Quotient Test)
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