Dysmorphic Concern Questionnaire: Greek Translation, Validation and Psychometric Properties

摘要

Aim of this study is to assess the reliability, validity and psychometric properties of the Greek language version of the Dysmorphic Concern Questionnaire (DCQ). Method: The Greek language version of the DCQ scale was presented to 88 healthy individuals (57 women and 31 men) and 32 subjects suffering from body dysmorphic disorder BDD (20 women and 12 men) matched for age and sex. All the BDD group subjects and 57 subjects from the healthy individual group were also assessed according to the following psychometric scales: Symptom Checklist-90-R (SCL-90) scale, Eysenck Personality Questionnaire (EPQ), State-Trait Anxiety Inventory (STAI 1 and STAI-2) and the Zung Self-Rating Depression scales. Results: Regarding the DCQ scale, the analysis revealed that one single factor was extracted that accounted for 71.4% of the total variance. Cronbach’s alpha was 0.933, indicating a high level of internal consistency. Comparison between groups, healthy individuals vs BDD patients, showed statistically significant differences in almost every item of the SCL-90 scale (p < 0.05). The Spearman correlations of DCQ score, the DCQ factor score and DCQ T factor with SCL-90, EPQ, as well as the ZUNG depressive scales present high correlation with most items of SCL-90 and ZUNG and STAI-2 (p < 0.005). Conclusion: The Greek version of the Dysmorphic Concern Questionnaire (DCQ) is a valid and reliable instrument, appropriate for both research and clinical settings where dysmorphic concern or body image is a variable which needs to be measured or screened for.