Academic journal article The European Journal of Psychology Applied to Legal Context

Forensic-Clinical Interview: Reliability and Validity for the Evaluation of Psychological Injury

Academic journal article The European Journal of Psychology Applied to Legal Context

Forensic-Clinical Interview: Reliability and Validity for the Evaluation of Psychological Injury

Article excerpt

Abstract

Forensic evaluation of psychological injury involves the use of a multimethod approximation i.e., a psychometric instrument, normally the MMPI-2, and a clinical interview. In terms of the clinical interview, the traditional clinical interview (e.g., SCID) is not valid for forensic settings as it does not fulfil the triple objective of forensic evaluation: diagnosis of psychological injury in terms of Post Traumatic Stress Disorder (PTSD), a differential diagnosis of feigning, and establishing a causal relationship between allegations of intimate partner violence (IPV) and psychological injury. To meet this requirement, Arce and Fariña (2001) created the forensic-clinical interview based on two techniques that do not contaminate the contents i.e., reinstating the contexts and free recall, and a methodic categorical system of contents analysis for the diagnosis of psychological injury and a differential diagnosis of feigning. The reliability and validity of the forensic-clinical interview designed for the forensic evaluation of psychological injury was assessed in 51 genuine cases of (IPV) and 54 mock victims of IPV who were evaluated using a forensic-clinical interview and the MMPI-2. The result revealed that the forensic-clinical interview was a reliable instrument (α = .85 for diagnostic criteria of psychological injury, and α = .744 for feigning strategies). Moreover, the results corroborated the predictive validity (the diagnosis of PTSD was similar to the expected rate); the convergence validity (the diagnosis of PTSD in the interview strongly correlated with the Pk Scale of the MMPI-2), and discriminant validity (the diagnosis of PTSD in the interview did not correlate with the Pk Scale in feigners). The feigning strategies (differential diagnosis) also showed convergent validity (high correlation with the Scales and indices of the MMPI2 for the measure of feigning) and discriminant validity (no genuine victim was classified as a feigner). Notwithstanding, feigning strategies failed to correctly classify all of the feigners indicating they must be complemented with other measures (multimethod approximation) to meet the requirements of forensic settings.

Keywords: forensic evaluation; psychological injury; simulation; clinical interview; MMPI-2; multimethod approach.

Resumen

La evaluación forense del daño psicológico implica la utilización de una aproximación multimétodo: instrumentación psicométrica, generalmente el MMPI-2, y una entrevista clínica. Como entrevista clínica, la entrevista clínica tradicional (p.e., la SCID) no es válida para el campo forense ya que no cumple con el triple objetivo de la evaluación forense: diagnosticar el daño psicológico (Trastorno de Estrés Postraumático, TEP), un diagnóstico diferencial de simulación, y establecer una relación causa-efecto entre los hechos denunciados y el daño. Para este propósito Arce y Fariña (2001) crearon la entrevista clínico forense basada en dos técnicas que no contaminan los contenidos: la reinstauración de contextos y el recuerdo libre, y un sistema categorial metódico de análisis de contenido para el diagnóstico del daño psicológico y diferencial de simulación. Se diseñó un estudio con el objeto de contrastar la fiabilidad y validez de la entrevista clínico forense en la evaluación forense del daño psicológico en casos de violencia contra la mujer. 51 víctimas reales de violencia de género y 54 simuladoras fueron sometidas a la entrevista clínico forense y al MMPI-2. Los resultados mostraron que la entrevista clínico forense es un instrumento fiable (α = .85 para los criterios diagnósticos del daño psicológico, α = .744 para la estrategias de simulación). Asimismo, los resultados avalaron la validez predictiva (el diagnóstico del TEP fue igual al esperado); convergente (el diagnóstico de TEP en la entrevista correlacionaba altamente con la Escala Pk del MMPI-2) y discriminante (el diagnóstico de TEP en la entrevista no correlacionaba con la Escala Pk entre las simuladoras). …

Search by... Author
Show... All Results Primary Sources Peer-reviewed

Oops!

An unknown error has occurred. Please click the button below to reload the page. If the problem persists, please try again in a little while.