Development of a measure for assessing malingered incompetency in criminal proceedings: Denney competency related test (D-CRT).

Introduction: Experts frequently assess competency in criminal settings where the rate of feigning cognitive deficit is demonstrably elevated. We describe the construction and validation of the Denney Competency Related Test (D-CRT) to assess feigned incompetency of defendants in the criminal adjudicative setting. It was expected the D-CRT would prove effective at identifying feigned incompetence based on its two alternative, forced-choice and performance curve characteristics.