Content area
Full Text
ABSTRACT
Objective: The Yale-Brown Obsessive Compulsive Scale Modified for Neurotic Excoriation (NE-YBOCS) is a valid and reliable scale used to evaluate the severity of skin picking disorder (SPD). This was a validity and reliability study of a Turkish version of the NE-YBOCS.
Method: Eighty patients diagnosed with SPD according to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition criteria were included the study. The patients completed a sociodemographic data form, as well as the Beck Depression Inventory, the Beck Anxiety Inventory, the Skin Picking Impact Scale, the Barratt Impulsiveness Scale, the Eysenck Personality Questionnaire Revised-Short Form, and a Turkish version of the NE-YBOCS for analysis of the findings.
Results: Exploratory factor analysis and confirmatory factor analysis determined that a 3-factor structure explained 74.7% of the variance and that the factor loads of 10 items were sufficient and had good fit index values. Criterion validity analysis verified the correlation between the NE-YBOCS and the other scales. The internal consistency of the scale, subdimensions, and item-total correlation coefficients were sufficient.
Conclusion: The results indicated that the Turkish NE-YBOCS can be used as reliable and valid instrument to assess SPD.
Keywords: Rating scale, reliability, skin picking disorder, validity
INTRODUCTION
Skin picking disorder (SPD) was first defined as neurotic excoriation (NE) by Erasmus Wilson in 1875. Historically, NE has also been referred to as compulsive skin picking, acne excorieé, dermatillomania, and psychogenic excoriation. In 1898, the case of a young patient who repeatedly picked at his acne was presented by a French dermatologist, M.L. Bronq. Early literature on NE reported that it was observed frequently in people with suppressed anger, or a personality described as sensitive, arrogant, nervous, or vindictive (1). It was first included in the text revision of the Diagnostic and Statistical Manual of Mental Disorders (DSM), Fourth Edition in the category of impulse control disorders not otherwise specified (NOS) (2). It was subsequently classified with obsessive-compulsive disorder (OCD) and related disorders in the DSM-5 with the establishment of diagnostic criteria (3). The diagnostic criteria are i) repetitive skin picking that results in skin lesions, ii) repeated attempts to stop or decrease skin picking, iii) picking causes clinical distress or impairment in functioning, (iv) picking cannot be explained by the use of a substance...