In a test or experiment the extent to which an individual item measures what it purports to measure.
ITEM VALIDITY: "Item Validity is the extent to which an individual item measures what it purports to measure."
Cite this page: N., Sam M.S., "ITEM VALIDITY," in PsychologyDictionary.org, May 11, 2013, https://psychologydictionary.org/item-validity/ (accessed June 29, 2022).