The utility of the psychopathy construct in predicting laboratory deficits, criminal behavior, response to intervention, and recidivism has been well documented in European American populations. However, less is known about the manifestation and correlates of psychopathy in Latino and African American populations. The present study examined the reliability and construct validity of the Psychopathy Checklist - Revised (PCL-R; R. D. Hare, 2003) in 83 Latino inmates compared with matched samples of African Americans and European Americans. Results provide preliminary evidence that the PCL-R provides a reliable and valid measure of psychopathy in Latinos, with generally similar patterns emerging across external correlates; however, some ethnic group differences were noted for relationships between psychopathy indicators and some external correlates.

The goal of the present study was to determine whether a reduced capacity for interhemispheric integration can explain the attention deficits seen in psychopathic individuals under conditions that place substantial demands on left-hemisphere-specific resources. The present study examined the performance of 54 incarcerated psychopathic and nonpsychopathic male offenders on a same-different global-local paradigm that permits manipulation of both the magnitude of processing demands and the demand for interhemispheric coordination. Prior studies with similar paradigms have demonstrated that the cerebral hemispheres can function more efficiently as relatively independent processors on simple tasks, whereas communication between the hemispheres improves performance when processing demands are heavy. Analyses indicated that psychopathic offenders are not deficient in interhemispheric integration but provided additional evidence consistent with the left hemisphere activation hypothesis of psychopathy.

Resumen: El objetivo fue desarrollar y evaluar las propiedades psicométricas del Cuestionario de Observación de la Conducta Bulímica (COBU), sobre la sintomatología observada en la bulimia nerviosa (BN) por los cuidadores. La muestra estaba constituida por 162 cuidadores de pacientes con BN (n = 126), anorexia nerviosa (n = 26) y trastorno de atracón (n = 10). A través de un análisis exploratorio del COBU, se han aislado tres factores: Observación de Sobreingesta (α = 0,77), Observación de Periodos de Restricción (α = 0.76) y Observación de Impulsividad (α = 0.62). El cuestionario muestra buena validez convergente con la escala ABOS para cuidadores (rho = 0.58, p < 0.01) y con el cuestionario BITE para pacientes (rho = 0.40, p < 0.01). El COBU discrimina entre diagnósticos clínicos, excepto la subescala de Observación de Impulsividad. Se recomienda su uso en evaluación familiar para ayudarles a reconocer y valorar los cambios en la sintomatología.Palabras clave: Bulimia nerviosa; desarrollo; cuestionario; validez; cuidadores. Bulimic Behaviour Observation Questionnaire (COBU): Developing an instrument for caregivers of patients with bulimia nervosa Abstract:The aim was to develop and evaluate the psychometric properties of the Bulimic Behaviour Observation Questionnaire (COBU), related to the symptoms observed in bulimia nervosa (BN) by caregivers. The sample consisted of 162 caregivers of patients with BN (n=126), anorexia nervosa (AN) (n = 26) and binge eating disorder (n =10). Exploratory analysis of the COBU revealed three factors: Overeating observation (α = 0.77), Restriction Interval Observation (α = 0.76) and Impulsivity Observation (α = 0.62). The questionnaire showed good convergent validity with the ABOS scale for carers (rho = 0.58), p < .01) and the BITE scale for patients (rho = 0.40, p < 0.01). The questionnaire discriminates between clinical diagnoses, except for the Impulsivity Observation subscale. It is recommended for use in the assessment by the family and to assist in recognizing and assessing changes in the symptoms.