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Related Experiment Videos

The Health Self-Determinism Index.

C L Cox

    Nursing Research
    |May 1, 1985
    PubMed
    Summary

    This study introduces the Health Self-Determinism Index, a new tool to measure motivation in health behavior. It demonstrates good reliability and validity, supporting its use in health research and interventions.

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    Area of Science:

    • Health Psychology
    • Psychometrics
    • Behavioral Science

    Background:

    • Motivation is crucial for health behavior change.
    • Existing measures may not fully capture the nuances of health motivation.
    • A reliable and valid instrument is needed to assess health motivation.

    Purpose of the Study:

    • To psychometrically evaluate the Health Self-Determinism Index (HSDI).
    • To assess the reliability and validity of the HSDI for measuring motivation in health behavior.
    • To establish the multidimensionality of health motivation.

    Main Methods:

    • Psychometric evaluation of the Health Self-Determinism Index (HSDI).
    • Mail survey administered to 202 randomly selected adults.
    • Factor analysis was used to determine the construct's multidimensionality.

    Main Results:

    • Factor analysis identified four subscales: self-determined health judgments, self-determined health behavior, perceived competency, and internal-external cue responsiveness.
    • These four factors explained 56% of the total variance.
    • The total scale demonstrated good reliability (alpha = .84), with subscales ranging from .67 to .75.

    Conclusions:

    • The Health Self-Determinism Index (HSDI) is a psychometrically sound measure of health motivation.
    • The HSDI's multidimensional structure supports its use in research.
    • This index can inform the development of targeted health interventions and the study of health outcomes.

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