In search of a fast screening method for detecting the malingering of cognitive impairment

• Autores: María Guadalupe Sánchez Crespo, Fernando Jiménez Gómez, Amada Ampudia Rueda, Vicente Merino Barragán
• Localización: The European journal of psychology applied to legal context, ISSN 1889-1861, Vol. 4, Nº. 2, 2012, págs. 135-158
• Idioma: inglés
• Enlaces
  • Texto completo
• Dialnet Métricas: 2 Citas
• Resumen
  • español

    En el contexto forense se le demanda al perito psicólogo una evaluación expeditiva y concluyente. Por ello, se planificó un estudio con el objetivo de diseñar una herramienta psicométrica simple, rápida y fiable para la detección de la simulación de deterioro cognitivo. Mediante un diseño cuasi-experimental, 156 individuos fueron divididos en tres grupos: un grupo normal de sujetos sin deterioro cognitivo; un grupo con Deterioro Cognitivo Leve (DCL); y un grupo de sujetos sanos simuladores de deterioro cognitivo. Análisis de la curva ROC del Test of Memory Malingering (TOMM) y de varios subtests de la Wechsler Memory Scale-III (WMS-III) mostró que la WMS-III era tan fiable y exacta en la discriminación entre respuestas simuladas y honestas como el TOMM. Además, los resultados también revelaron que la exactitud diagnóstica, la sensibilidad y especificidad del subtest del WMS-III Reconocimiento de Parejas de Palabras eran similares al TOOM en la discriminación entre simuladores y casos verdaderos de deterioro cognitivo. En conclusión, el subtest del WMS-III de Reconocimiento de Parejas de Palabras y el TOMM conforman un método rápido, válido y fable para la detección de la simulación de deterioro cognitivo.

  • English

    Forensic settings demand expedient and conclusive forensic psychological assessment. The aim of this study was to design a simple and fast, but reliable psychometric instrument for detecting the malingering of cognitive impairment. In a quasi-experimental design, 156 individuals were divided into three groups: a normal group with no cognitive impairment; a Mild Cognitive Impairment (MCI) group; and a group of informed malingerers with no MCI who feigned cognitive impairment. Receiver Operating Curve (ROC) analysis of the Test of Memory Malingering (TOMM), and of several subtests of the Wechsler Memory Scale (WMS-III) revealed that the WMS-III was as reliable and accurate as the TOMM in discriminating malingerers from the honest. The results revealed that the diagnostic accuracy, sensitivity and specificity of the WMS-III Auditory Recognition Delayed of Verbal Paired Associates subtest was similar to the TOMM in discriminating malingering from genuine memory impairment. In conclusion, the WMS-III Recognition of Verbal Paired Associates subtest and the TOMM provide a fast, valid and reliable screening method for detecting the malingering of cognitive impairment.

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