Psychometric properties of the excoriation (skin-picking disorder) dimensional scale

Angela Russell; Andrea Del Pozo de Bolger; Karen Moses; Aileen Luo; Bethany M Wootton

doi:10.1111/cp.12207

Psychometric properties of the excoriation (skin-picking disorder) dimensional scale

Angela Russell, Andrea Del Pozo de Bolger, Karen Moses, Aileen Luo, Bethany M Wootton

School of Psychology

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Objective: The 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.

Method: The 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.

Results: The results indicated that the SPD-D demonstrated a unidimensional structure, high internal consistency (r_s = .87, .86, and .92 across three samples), and good test–retest reliability (r_s = .86). The SPD-D also demonstrated good convergent validity with the Skin-Picking Scale Revised (r_s = .90) as well as divergent validity with the generalised anxiety disorder scale (r_s = .40).

Conclusions: Overall, the SPD-D appears to be a brief and reliable measure of SPD symptomatology.

Original language	English
Pages (from-to)	246-253
Journal	Clinical Psychologist
Volume	24
Issue number	3
DOIs	https://doi.org/10.1111/cp.12207
Publication status	Published - 30 Nov 2020

Keywords

SPD-D
DSM-5
excoriation disorder
psychometric properties
skin-picking disorder
Psychology, Clinical
Psychology
dimensional scale

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10.1111/cp.12207

https://hdl.handle.net/1959.11/57988

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@article{b27012e93a914c5493fad62759b29075,

title = "Psychometric properties of the excoriation (skin-picking disorder) dimensional scale",

abstract = "Objective: The 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. Method: The 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. Results: The 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). Conclusions: Overall, the SPD-D appears to be a brief and reliable measure of SPD symptomatology.",

keywords = "SPD-D, DSM-5, excoriation disorder, psychometric properties, skin-picking disorder, Psychology, Clinical, Psychology, dimensional scale",

author = "Angela Russell and \{Del Pozo de Bolger\}, Andrea and Karen Moses and Aileen Luo and Wootton, \{Bethany M\}",

year = "2020",

month = nov,

day = "30",

doi = "10.1111/cp.12207",

language = "English",

volume = "24",

pages = "246--253",

journal = "Clinical Psychologist",

issn = "1328-4207",

publisher = "Taylor \& Francis",

number = "3",

}

TY - JOUR

T1 - Psychometric properties of the excoriation (skin-picking disorder) dimensional scale

AU - Russell, Angela

AU - Del Pozo de Bolger, Andrea

AU - Moses, Karen

AU - Luo, Aileen

AU - Wootton, Bethany M

PY - 2020/11/30

Y1 - 2020/11/30

N2 - Objective: The 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. Method: The 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. Results: The 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). Conclusions: Overall, the SPD-D appears to be a brief and reliable measure of SPD symptomatology.

AB - Objective: The 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. Method: The 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. Results: The 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). Conclusions: Overall, the SPD-D appears to be a brief and reliable measure of SPD symptomatology.

KW - SPD-D

KW - DSM-5

KW - excoriation disorder

KW - psychometric properties

KW - skin-picking disorder

KW - Psychology, Clinical

KW - Psychology

KW - dimensional scale

UR - https://www.scopus.com/pages/publications/85079430384

U2 - 10.1111/cp.12207

DO - 10.1111/cp.12207

M3 - Article

SN - 1328-4207

VL - 24

SP - 246

EP - 253

JO - Clinical Psychologist

JF - Clinical Psychologist

IS - 3

ER -

Psychometric properties of the excoriation (skin-picking disorder) dimensional scale

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Keywords

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