acronym form of: the Otis-Lennon school ability test.
OLSAT: "The OLSAT is partly named for Arthur Sinton Otis."
Cite this page: N., Sam M.S., "OLSAT," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/olsat/ (accessed June 25, 2022).