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Related Experiment Videos

Does the Illness Behavior Questionnaire measure abnormal illness behavior?

A B Zonderman, M W Heft, P T Costa

    Health Psychology : Official Journal of the Division of Health Psychology, American Psychological Association
    |January 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

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    The Illness Behavior Questionnaire (IBQ) measures abnormal illness behavior (AIB) but is heavily influenced by neuroticism. Elevated IBQ scores may be misleading without medical data, questioning its diagnostic utility.

    Area of Science:

    • Psychological Medicine
    • Medical Sociology

    Background:

    • Abnormal illness behavior (AIB) describes maladaptive responses to health status.
    • The Illness Behavior Questionnaire (IBQ) was developed to measure AIB.
    • Previous factor structure studies of the IBQ yielded inconsistent results.

    Purpose of the Study:

    • To examine the factor structure of the IBQ.
    • To critically evaluate the interpretation of IBQ dimensions and the AIB construct.
    • To assess the validity of the IBQ as a diagnostic tool.

    Main Methods:

    • Factor analysis of IBQ responses from 1,061 subjects (healthcare seekers and non-seekers).
    • Correlation analysis of IBQ scales with personality measures.
    • Critical evaluation of construct validity and discriminant validity.

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    Main Results:

    • A six-factor structure of the IBQ was identified, replicating previous findings.
    • The IBQ scales were significantly correlated with neuroticism.
    • Elevated IBQ scores reflect neuroticism and excessive medical complaints, not necessarily AIB or hypochondriasis.

    Conclusions:

    • The IBQ is saturated with neuroticism, limiting its ability to specifically measure AIB.
    • Discriminant validity of the IBQ is not established.
    • Using IBQ scores diagnostically without medical corroboration is unwarranted and potentially misleading.