Abstract
ObjectiveThe Excoriation (skin‐picking disorder) dimensional scale (SPD‐D) is a new measure of excoriation skin picking disorder (SPD). The 5‐item scale was developed by the Diagnostic and Statistical Manual (Fifth Edition) obsessive–compulsive spectrum disorders sub‐workgroup to assist in the dimensional assessment of SPD.MethodThe aim of the present study was to provide a psychometric evaluation of this new scale in a large community sample. 803 participants were recruited from online community noticeboards around Australia.ResultsThe results indicated that the SPD‐D demonstrated a unidimensional structure, high internal consistency (rs = .87, .86, and .92 across three samples), and good test–retest reliability (rs = .86). The SPD‐D also demonstrated good convergent validity with the Skin‐Picking Scale Revised (rs = .90) as well as divergent validity with the generalised anxiety disorder scale (rs = .40).ConclusionsOverall, the SPD‐D appears to be a brief and reliable measure of SPD symptomatology.
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