This chapter reviews historical observations concerning malingering. It discusses the techniques currently used to detect malingering of memory deficits. The essential feature of malingering is that symptoms are intentionally produced, indicating malingerers must have self-awareness of the falseness of their symptoms. A number of techniques have been developed with the specific goal of helping the clinician to determine if an examinee is not exerting maximum effort on a task. Among those used to detect feigned memory disorders are Rey's 15-Item Memory Test, Rey's Word Recognition List, and various versions of symptom validity tests. Individuals instructed to simulate memory impairment on standardized memory tests often perform worse than patients with known brain dysfunction, particularly on recognition tasks. Use of such data from established clinical tests provides the additional benefits of diagnostically relevant information without the time and expense of administering procedures specifically designed to detect malingering.