ABSTRACT
Objective:To test the four-factor model of the Hare Psychopathy Checklist - Revised (PCL-R) empirical construct of psychopathy in a Chilean prison population by using instruments that supply different types of data.Methods:Two hundred and nine male inmates of the Prison of Los Andes, Chile, were evaluated. Confirmatory factor analysis was carried out with the PCL-R and the Self-Report of Psychopathy - III - Short Form (SRP-III-SF).Results:The distributions of total PCL-R and SRP-III-SF scores were normal (Kolmorogov-Smirnov [K-S] = 1.04, p = 0.230; K-S = 0.812, p = 0.525, respectively), with means of 20.9±6.8 for the former and 61.6±15.2 for the latter. Model fit was good for the PCL-R (Tucker Lewis index [TLI] = 0.96; root mean square error of approximation [RMSEA] = 0.04) and for the SRP-SF (TLI = 0.94, RMSEA = 0.04).Conclusions:The results obtained with the PCL-R and the SRP-SF showed adequate fit to the empirical four-factor model of psychopathy and support this model. As foreseeable, fit was better for the PCL-R, which combines several sources of information.
Subject(s)
Adult , Humans , Male , Middle Aged , Antisocial Personality Disorder/psychology , Personal Construct Theory , Personality Inventory/standards , Prisoners/psychology , Self Report/standards , Antisocial Personality Disorder/diagnosis , Checklist , Chile , Factor Analysis, Statistical , Prisons , Psychiatric Status Rating Scales , Psychometrics , Reproducibility of Results , Statistics, NonparametricABSTRACT
INTRODUCTION: Evaluation of mental health in forensic field is relevant in order to plan interventions and diminish institutional risks. The procedure includes the evaluation of psychopathic traits, which should be assessed by reliable and valid instruments. OBJECTIVES: To evaluate the internal congruence of the Chilean version of the PCL-R, and the convergent validity with the PCL: SV, the SRP-III-SF and the IM-P. To explore the utility of the PCL: SV as screening tool. MATERIAL AND METHOD: The population of sentenced inmates of the Jail of Los Andes, Chile, was evaluated in a cross sectional study (N=209 inmates of a universe of 235 eligible subjects). Data was obtained from different sources and the interviews were video-recorded. The PCL-R, PCL: SV, IM-P and SRP-III-SF were used. RESULTS: Cronbach Alpha for the PCL-R total score was 0.97. The correlation of the total PCL-R score with the PCL: SV was 0.87; 0.37 with the SRP-III-SF and 0.75 with the IM-P. Sensibility of the PCL: SV was 1 and specificity 0.90 thus concluding that it is an excellent screening test.
Subject(s)
Adult , Humans , Male , Checklist , Antisocial Personality Disorder/diagnosis , Psychiatric Status Rating Scales , Chile , Cross-Sectional Studies , Reproducibility of ResultsABSTRACT
Introducción: Dada la relevancia clínica y social que tiene la psicopatía, resulta útil contar con instrumentos autoinformados para la aproximación diagnóstica a la psicopatía. Objetivos: Evaluar la congruencia interna y la validez convergente del Self Report of Psychopathy-Short Form. Material y métodos: Se evaluaron 208 personas condenadas, alojadas en el Centro de Cumplimiento Penal de la Provincia de Los Andes, Chile. Se utilizaron el SRP-III-SF, el PCL-R y la HCR-20. Resultados: La distribución de valores del SRP-III-SF tuvo una media de 61,6 y fue normal. El Coeficiente de Alfa de Cronbach para el total fue 0,8 y para los factores 1, 2, 3 y 4 fue 0,7, 0, 4, 0,7 y 0,5, respectivamente. La correlación del SRP-III-SF con el PCL-R fue 0,4 (p = 0,01) y con HCR 20, 0,5 (p < 0,001). El riesgo de diagnóstico de psicopatía con el PCL-R aumentó en forma lineal para cada cuartil de la distribución del SRP-SF. El área bajo la curva ROC fue 0,66 (p = 0,05; 95% IC 0,5; 0,8).
Introduction: Given the clinical and social relevance of psychopathy, it is desirable to have self-report instruments for a proper diagnostic approach. Objectives: Assess the internal congruence and convergent validity of the Self Report of Psychopathy Scale III-Short Form. Material and Methods: 208 convicts housed at the Centro de Cumplimiento Penal detention center in the Province of Los Andes, Chile, were evaluated using the SRP-III-SF, PCL-R, and HCR-20 schemes. Results: the SRP-III-SF distribution was normal, with a mean of 61.6. The Cronbachs Alpha Coefficient for the total was 0.8, and 0.7, 0.4, 0.7 and 0.5 for the 1, 2, 3, and 4 factors respectively, while the correlations of SRP-III-SF with PCL-R and HCR 20 were, respectively, 0.4 (p = 0.01) and 0.5 (p < 0,001). The scores of the PCL-R diagnosed psychopathy were linearly higher for each quartile of the SRP-SF distribution. The area under the ROC curve was 0.66 (p = 0.05; 95% IC 0.5; 0.8).
Introdução: Dada a relevância clínica e social que tem a psicopatia, é útil contar com instrumentos autoinformados para a aproximação diagnóstica à psicopatia. Objetivos: Avaliar a congruência interna e a validez convergente do Self Report of Psychopathy-Short Form. Material e métodos: Avaliaram-se 208 pessoas condenadas, alojadas no Centro de Cumprimento Penal da Província dos Andes, Chile. SRP-III-SF, PCL-R e HCR-20 foram usados. Resultados: A distribuição dos valores do SRP-III-SF teve uma média de 61.6 e foi normal. O Coeficiente do Alfa de Cronbach para o total foi 0.8 e para os fatores 1, 2, 3 e 4 foi 0.7, 0.4, 0.7 e 0.5, respectivamente. A correlação do SRP-III-SF com PCL-R foi 0.4 (p = 0.01) e com HCR 20, 0.5 (p < 0.001). O risco do diagnóstico de psicopatia com o PCL-R aumentou em forma linear para cada quartil da distribuição do SRP-SF. A área sob a curva ROC foi 0.66 (p = 0.05; 95% IC 0.5; 0.8).