Malingering is the intentional feigning of illness for external gain. The author has written several papers on the epidemiology, assessment, testing and reporting of this. However, practice in this field can raise considerable challenges, not least the inability to determine motivation for lying, and potential damage from ‘false positives’, where individuals fabricate some aspects of their testimony, yet still have underlying psychiatric problems. This brief article lays out the author's reflections on this complex area.
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