An examination of the ECST-R as a screen for feigned incompetency to stand trial

Psychological Assessment
Richard RogersKimberly S Harrison

Abstract

Psychological assessments of competency-to-stand-trial (CST) referrals must consider whether the defendants' impairment is genuine or feigned. This study addressed feigning on the Evaluation of Competency to Stand Trial--Revised (ECST-R), a standardized interview designed for assessing dimensions of CST and screening for feigned CST. In particular, this study examined the effectiveness of the ECST-R's Atypical Presentation (ATP) scales as screens for feigned incompetency. It examined ATP scales for (a) jail detainees (n=96) in simulation and control conditions and (b) inpatient competency cases (n=56) in clinical comparison and probable malingering groups. Comparisons of ATP scales yielded very large effect sizes for feigners when compared with jail controls (mean d=2.50) and genuine inpatient competency cases (mean d=1.83). Several cut scores were established with very few false negatives and robust sensitivity estimates. In summary, the ECST-R ATP scales appear to be homogenous scales with established clinical use as feigning screens in CST evaluations.

References

Jan 1, 1978·Schizophrenia Bulletin·R L SpitzerJ Endicott
Sep 1, 1992·Journal of Clinical Psychology·R RogersS E Dickens
Apr 29, 1998·Behavioral Sciences & the Law·K R Cruise, R Rogers
Jun 19, 1998·Law and Human Behavior·R Rogers, K R Cruise
Jun 12, 2002·Psychological Assessment·Richard RogersMichael J Vitacco
Jun 12, 2002·Annals of Oncology : Official Journal of the European Society for Medical Oncology·E Van CutsemB Glimelius
Jun 13, 2003·Assessment·Richard RogersMichael J Vitacco
Jan 1, 1997·Applied Neuropsychology·J R Price, K B Stevens

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Citations

May 27, 2006·Law and Human Behavior·Norman PoythressLaurence Steinberg
Oct 24, 2006·Law and Human Behavior·Michael J VitaccoJanice Munizza
Oct 28, 2008·Law and Human Behavior·Richard RogersKimberly S Harrison
Jan 6, 2006·Psychological Assessment·Patricia A ZapfStephen L Golding
Aug 6, 2010·Behavioral Sciences & the Law·Sherif Soliman, Phillip J Resnick
Oct 8, 2008·Assessment·Richard I Frederick, Stephen C Bowden
Jul 22, 2006·Journal of Personality Assessment·Robert P ArcherRichard W Handel
Sep 16, 2010·Behavioral Sciences & the Law·Christina C Guenther, Randy K Otto
Apr 28, 2006·Current Opinion in Psychiatry·Juan José Carrasco Gómez, Julio Arboleda-Flórez
Jan 26, 2013·Behavioral Sciences & the Law·Michael H FogelThomas Grisso

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