Test-Retest Reliability. Test-retest reliability is a measure of the consistency of a psychological test or assessment. This kind of reliability is used to determine the consistency of a test across time. Test-retest reliability is best used for things that are stable over time, such as intelligence.
Argonaut - (Greek mythology) one of the heroes who sailed with Jason in search of the Golden Fleece. Greek mythology - the mythology of the ancient Greeks.
Freebase(0.00 / 0 votes)Rate this definition: Castanet. Castanets are a percussion instrument, used in Kalo, Moorish, Ottoman, ancient Roman, Italian, Spanish, Sephardic, Swiss, and Portuguese music. The instrument consists of a pair of concave shells joined on one edge by a string.