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conferenceseries
.com
Volume 7, Issue 5 (Suppl)
J Psychol Psychother, an open access journal
ISSN: 2161-0487
Psychosomatic Medicine & Forensic Congress 2017
October 12-14, 2017
JOINT EVENT
24
th
International Conference on
PSYCHIATRY & PSYCHOSOMATIC MEDICINE
2
nd
International Congress on
FORENSIC SCIENCE AND PSYCHOLOGY
&
October 12-14, 2017 London, UK
Detection strategies for feigned psychopathology: Test development and effects of criminal charge
simulation design on response styles
Natthawut Arin
Chiang Mai University, Thailand
T
he structure and objectivity to detecting feigned psychopathology being extremely require of forensic setting in Thailand. The
Thai version of malingering test (Th-MT) was developed as the first test to reduce the obstacle to language and suitable to Thai
context. This initial test was developed based on two broad detection strategies; unlikely and amplified detection strategy (Rogers,
2008). Moreover, the effective sub-detection strategies of the most popular malingering tests including; SIRS, SIMS and M-FAST
(Rogers, Bagby, & Dickens, 1992; Smith & Burger, 1997; Miller, 2001) were combined. The 518 samples were collected from non-
clinical (undergraduate students, n=421) and clinical samples (psychiatric patients, n=97). The result revealed: 1) In study one, the
two detection strategies model supported by confirmatory factor analysis was used to analyze; unlikely detection strategy (two sub-
detection strategies; Rare Symptoms and Symptom Combinations were loaded), while the three sub-detection strategies of amplified
detection strategy were not totally supported (Extreme Psychopathology, Over Negative Self-Image and Suggestibility &Over-report).
The combination of Over Negative Self-Image and Suggestibility & Over-report to new strategy called
Over-report
was reached to
goodness-of-fit indices. Furthermore, this Th-MT possesses good internal consistency. 2) Using a simulation designed in study two,
one group of simulators asked to feign psychopathology to avoid criminal prosecution of homicide charge (Simulator students, n= 45)
were compared with two control groups asked to reply to questions honestly (Honest students, n= 45 and Honest psychiatric patients,
n= 45). The results indicate that the mean scores of the Th-MT for simulator students were significantly higher than those of both
honest students and honest psychiatric patients. Conclusions, the Th-MT has good psychometric properties of a detecting feigned
psychopathology tool and to reliable screen for malingered psychopathology.
Biography
Natthawut Arin completed his BS (Psychology: Clinical track), MA (Criminology & Criminal Justice) and PhD (Applied Behavioral Science Research) from University
in Thailand. I used to be a clinical psychologist and work as forensic psychologist at Galya Rajanagarindra Institute (Government hospital for forensic psychiatric
services), Mental Health Department, Ministry of Public Health for 15 years ago. I have more inspiration to conduct and continue doing the research in forensic
psychology issue (e.g. risk assessment, criminal resposibility, malingering). Now, I am a lecture at Psychology Department of Chiang Mai University. And also teach
in forensic psychology and criminal psychology subjects.
natth3601@gmail.comNatthawut Arin, J Psychol Psychother 2017, 7:5(Suppl)
DOI: 10.4172/2161-0487-C1-017