Abstract:
OBJECTIVE:Individuals with medical conditions are likely to have elevated health anxiety; however, research has not demonstrated how medical status impacts response patterns on health anxiety measures. Measurement bias can undermine the validity of a questionnaire by overestimating or underestimating scores in groups of individuals. We investigated whether the Short Health Anxiety Inventory (SHAI), a widely-used measure of health anxiety, exhibits medical condition-based bias on item and subscale levels, and whether the SHAI subscales adequately assess the health anxiety continuum. METHODS:Data were from 963 individuals with diabetes, breast cancer, or multiple sclerosis, and 372 healthy individuals. Mantel-Haenszel tests and item characteristic curves were used to classify the severity of item-level differential item functioning in all three medical groups compared to the healthy group. Test characteristic curves were used to assess scale-level differential item functioning and whether the SHAI subscales adequately assess the health anxiety continuum. RESULTS:Nine out of 14 items exhibited differential item functioning. Two items exhibited differential item functioning in all medical groups compared to the healthy group. In both Thought Intrusion and Fear of Illness subscales, differential item functioning was associated with mildly deflated scores in medical groups with very high levels of the latent traits. Fear of Illness items poorly discriminated between individuals with low and very low levels of the latent trait. CONCLUSIONS:While individuals with medical conditions may respond differentially to some items, clinicians and researchers can confidently use the SHAI with a variety of medical populations without concern of significant bias.
journal_name
J Psychosom Resjournal_title
Journal of psychosomatic researchauthors
LeBouthillier DM,Thibodeau MA,Alberts NM,Hadjistavropoulos HD,Asmundson GJdoi
10.1016/j.jpsychores.2014.12.014subject
Has Abstractpub_date
2015-04-01 00:00:00pages
384-90issue
4eissn
0022-3999issn
1879-1360pii
S0022-3999(14)00450-4journal_volume
78pub_type
杂志文章abstract:OBJECTIVE:A common reason for organ rejection after transplantation is the lack of adherence regarding immunosuppressive medication (ISM). A variety of different aspects can promote non-adherent behavior, including the relationship between perceived benefits and concerns regarding ISM ("necessity-concerns-framework"). ...
journal_title:Journal of psychosomatic research
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journal_title:Journal of psychosomatic research
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abstract::In a sample of consecutive ulcer (DU) patients and age, sex and social class matched normal controls, the prevalence of antecedent stressful life events in the two samples was similar. Antecedent chronic difficulties often lasting years were however significantly more common in the ulcer patients. Duodenal ulcer was m...
journal_title:Journal of psychosomatic research
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journal_title:Journal of psychosomatic research
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journal_title:Journal of psychosomatic research
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journal_title:Journal of psychosomatic research
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journal_title:Journal of psychosomatic research
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journal_title:Journal of psychosomatic research
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journal_title:Journal of psychosomatic research
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journal_title:Journal of psychosomatic research
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pub_type: 杂志文章
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journal_title:Journal of psychosomatic research
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journal_title:Journal of psychosomatic research
pub_type: 杂志文章
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journal_title:Journal of psychosomatic research
pub_type: 社论,评审
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更新日期:1997-11-01 00:00:00
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pub_type: 杂志文章,随机对照试验
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更新日期:2019-01-01 00:00:00
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journal_title:Journal of psychosomatic research
pub_type: 杂志文章
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更新日期:1986-01-01 00:00:00
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pub_type: 杂志文章
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更新日期:2019-08-01 00:00:00
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journal_title:Journal of psychosomatic research
pub_type: 杂志文章
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更新日期:1981-01-01 00:00:00