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The reliability and validity of the Turkish Version of Psychopathy Checklist-Revised (Turkish PCL–R)

Recep Tütüncu, Selim Kılıç, Cengiz Başoğlu, Mehmet Alpay Ateş, Ayhan Algül, Hakan Balıbey, Hüseyin Günay, Ümit Başar Semiz, Cem Öge, Servet Ebrinç, Mesut Çetin.

Abstract
Objectives: Psychopathy is a distinct personality organization and differs from antisocial personality disorders in many aspects. Its diagnosis is challenging but also critical to predict criminality. In this context, Psychopathy Checklist Revised (PCL-R) is a useful tool in the diagnosis of psychopathy. Its reliability and validity was shown in various populations but has not been studied in a Turkish population. Our aim was to demonstrate the reliability and validity of PCL-R in a sample from Turkey.
Methods: 425 male subjects with antisocial personality disorder and 125 controls without any psychiatric diagnoses were included in the study. DSM-5 diagnostic criteria were used and PCL-R was administered to all participants. The reliability of the Turkish version of PCL-R was determined by test–retest and internal consistency methods. In the ROC analysis performed with PCL-R, DSM-5 criteria were taken as a gold standard, the sensitivity; specificity and cut-off values of PCL-R were estimated. To evaluate the adequacy of the scale construct validity, Exploratory Factor Analysis and Kaiser-Meyer-Olkin (KMO) and Barlett tests were applied. Reproducibility of the test was evaluated by Pearson correlation coefficient. Re-testing was performed with 171 subjects two weeks after the first test.
Results: In reliability analysis, the Cronbach’s alpha internal consistency coefficient was calculated to be α=0.977. Pearson correlation coefficient of test-retest was r=0.94 (p

Key words: psychopathic personality, antisocial personality disorder, reliability, validity



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