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The Illness/Injury Sensitivity Index: an examination of construct validity
Author(s) -
Carleton R. Nicholas,
Park Ilhyeok,
Asmundson Gordon J.G.
Publication year - 2006
Publication title -
depression and anxiety
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.634
H-Index - 129
eISSN - 1520-6394
pISSN - 1091-4269
DOI - 10.1002/da.20138
Subject(s) - construct validity , index (typography) , psychology , clinical psychology , construct (python library) , psychiatry , medicine , psychometrics , computer science , world wide web , programming language
The 11‐item Illness/Injury Sensitivity Index [ISI; Taylor, 1993: J Behav Ther Exp Psychiatry 24:289–299] measures fears of injury and illness and has the potential to delineate some mechanisms underlying anxiety‐associated chronic health conditions. In a principal components analysis in 2005, Carleton et al. [2005a: J Psychopathol Behav Assess 27:235–241] indicated that a two‐factor solution (Fear of Injury and Fear of Illness) best explained the structure of the ISI. The primary purpose of this study was to examine the structural and construct validity of the ISI. Results supported a two‐factor solution after removal of two overinclusive items. Although the measure demonstrated good factorial validity, convergent and discriminant validity require further evaluation. In addition, a substantial correlation with fear of pain suggests a shift in our perspective on what constitutes a fundamental fear. Future research implications are discussed. Depression and Anxiety 23:340–346, 2006. © 2006 Wiley‐Liss, Inc.