Test, TEST or Tester may refer to:
- Test (assessment), an assessment intended to measure the respondents' knowledge or other abilities
- Physical fitness test
- Driving test
- Performance test (assessment)
- Performance test (bar exam)
- Test match (disambiguation), an international sporting contest
- River Test, a river in England
- The upper part of a four-poster bed
- Tester, a canopy over a tomb or pulpit, also known as a sounding board
Mathematics and statistics
- Statistical hypothesis testing, a method of making decisions using data
- Statistical test, a statistical procedure aiming to classify the elements of a population
- Statistical hypothesis testing, a method of making statistical decisions using experimental data, particular case of the former
Science and technology
- Concept inventory, an assessment to reveal student thinking on a topic
- test (Unix), a Unix command for evaluating conditional expressions
- TEST (x86 instruction), an x86 assembly language instruction
- Software testing, the process of verifying that a software program works as expected
- Experiment, a part of the scientific method
- Test (biology), the shell of sea urchins and certain microorganisms
- Test method, a definitive procedure that produces a test result
- Chemical test, a procedure designed to prove the existence of, or to quantify, a particular substance
- Psychological testing, the use of behavioral samples to make inferences about an individual
- Physical test, a method for determining characteristics of a product
- Toxicology testing
People
- Desmond Tester (1919–2002)
- John Test (1771–1849)
- Jon Tester (born 1956), junior Senator from Montana, a Democrat
- Ralph Tester, head of the Testery, a British codebreaking station at Bletchley Park
- Ruth Tester (1903–1993)
- Scan Tester (1887–1972), English folk and country musician
- William Tester (born 1960), American novelist
- Zachary Test (born 1989), American rugby union player
- Andrew Martin (1975–2009), professional wrestler who used the ring name "Test"
Media and entertainment
- Tests (album), a 1998 album by The Microphones
- "Tester," a song by Anthrax on the album Stomp 442
- The Tester, a reality show produced by Sony about videogame testing
- Johnny Test, an American/Canadian animated television series
If a test of civilization be sought, none can be so sure as the condition of that half of society over which the other half has power.
— Harriet Martineau (18021876)