1. the science or art of making a personality evaluation. 2. the diagnosis of a mental disorder. — psychodiagnostician, n. — psychodiagnostic, adj.See also: Psychology
psychodiagnostics
psychodiagnostics
(sī″kō-dī″ăg-nŏs′tĭks) The use of psychological testing as an aid in diagnosing mental disorders.