Identification of the underlying factor structure of the derriford appearance scale 24

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Moss, T.P. ; Lawson, V. ; White, P. ; Rumsey, N. ; Byron-Daniel, J. ; Charlton, R. ; Clarke, A. ; Clarke, S.A. ; Harcourt, D. ; McBain, H. ; Jenkinson, E. ; Lindenmeyer, A. ; Newell, R. ; Newman, S. ; Saul, K. ; Thompson, A.R. ; Walsh, E. ; The, A.R.C. (2015)
  • Publisher: PeerJ

Background: The Derriford Appearance Scale24 (DAS24) is a widely used measure of distress and dysfunction in relation to self-consciousness of appearance. It has been used in clinical and research settings, and translated into numerous European and Asian languages. Hitherto, no study has conducted an analysis to determine the underlying factor structure of the scale. \ud \ud Methods: A large (n = 1,265) sample of community and hospital patients with a visible difference were recruited face to face or by post, and completed theDAS24. \ud \ud Results: A two factor solution was generated. An evaluation of the congruence of the factor solutions on each of the the hospital and the community samples using Tucker's Coefficient of Congruence (r<inf>c</inf> =.979) and confirmatory factor analysis, which demonstrated a consistent factor structure. A main factor, general self consciousness (GSC), was represented by 18 items. Six items comprised a second factor, sexual and body self-consciousness (SBSC). The SBSC scale demonstrated greater sensitivity and specificity in identifying distress for sexually significant areas of the body. \ud \ud Discussion: The factor structure of the DAS24 facilitates a more nuanced interpretation of scores using this scale. Two conceptually and statistically coherent sub-scales were identified. The SBSC sub-scale offers a means of identifying distress and dysfunction around sexually significant areas of the body not previously possible with this scale.
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