The Psychosomatic Symptom Checklist revisited: Reliability and validity in a chronic pain population |
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Authors: | John T. Chibnall Raymond C. Tait |
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Affiliation: | (1) Department of Psychiatry and Human Behavior, St. Louis University School of Medicine, 63104 St. Louis, Missouri;(2) Division of Behavioral Medicine, c/o Pain Management Program, St. Louis University School of Medicine, 1221 South Grand Boulevard, 63104 St. Louis, Missouri |
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Abstract: | A psychometric evaluation of the SUNYA Revision of the Psychosomatic Symptom Checklist (PSC) was conducted with 405 chronic pain patients who completed the PSC as part of a diagnostic battery. Several properties of the measure were examined, including its reliability, internal consistency, discriminant validity, and factor structure. Contrary to a previous study, the measure demonstrated a modest reliability, a poor discriminant validity, and a multifactor structure that accounted for only a small proportion of the variance in the measure. Thus, the PSC did not appear to be an adequate measure of general psychosomatic distress when used with chronic pain patients. For these patients, the PSC may measure symptom clusters rather than general psychosomatic symptomatology. Since the PSC is used in various clinical populations, the results underscore the importance of investigating the properties of the measure in these populations. |
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Keywords: | psychosomatic symptoms psychometrics chronic pain |
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