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The prevalence of cognitive distortions in sexual offenders is a significant risk factor for reoffending. Investigation of cognitive distortions can improve the quality of differential diagnosis and expert assessment of the accused. The aim of this study was the testing of the criterion and convergent validity, as well as the internal consistency of two scales for assessing cognitive distortions: the Dichotomic Scale of Cognitive Distortions and the Russian version of the MOLEST scale. The psychometric properties of the questionnaires were tested on a sample of 84 male subjects. Many of them (63 subjects) were accused of committing sexual criminal acts against minors (37 with pedophilia, 26 without disorders of sexual preference). The results of the study demonstrate good internal consistency for both the scales (Cronbachs alpha was 0,910 and 0,956, respectively). Evidences of criterion validity for the diagnosis of pedophilia (for both methods at the significance level of p0,01) and convergent validity (r=0,713; p=0) are given. The proposed scales are resistant to social desirability and can be used as additional diagnostic tools in clinical practice.
Demidova et al. (Thu,) studied this question.