VALIDATION By Nugent, Pam M.S. - April 29, 2013 noun. the procedure involved in identifying the correctness of a tool in gauging what it is made to gauge. VALIDATION: "The validation procedure will rule out whether or not the scale can be used in the trial." Related Psychology Terms UNOBTRUSIVE MEASURE VALIDITY CRITERION POLYGRAPH VALIDITY PRECISION THERMISTOR TIMER OSMOMETER OSCILLOMETER CONSENSUAL VALIDATION Cite this page: Nugent, Pam M.S., "VALIDATION," in PsychologyDictionary.org, April 29, 2013, https://psychologydictionary.org/validation/ (accessed October 20, 2018).