期刊
PSYCHOLOGICAL MEDICINE
卷 39, 期 2, 页码 277-285出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0033291708003322
关键词
Assessment; diagnosis; hypochondriasis; measurement; taxometric
资金
- UK Health and Safety Executive award
Background. A long-standing issue in the health anxiety literature is the extent to which health anxiety is a dimensional or a categorical construct. This study explores this question directly using taxometric procedures. Method. Seven hundred and eleven working adults completed an index of health anxiety [the Whiteley Index (WI)] and indicated their current health status. Data from those who were Currently healthy (n =501) and receiving no medical treatment were examined using three taxometric procedures: mean above minus below a cut (MAMBAC), maximum eigenvalue (MAXEIGEN) and L-mode factor analysis (L-MODE). Results. Graphical representations (comparing actual to simulated data) and fit indices indicate that health anxiety is more accurately represented as a dimensional rather than a categorical construct. Conclusions. Health anxiety is better represented as a dimensional construct. Implications for theory development and clinical practice are examined.
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