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Development of a fatigue scale

T Chalder1, G Berelowitz, T Pawlikowska

  • 1Academic Department of Psychological Medicine, King's College Hospital, Camberwell, London, U.K.

Journal of Psychosomatic Research
|January 1, 1993
PubMed
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A new 14-item fatigue scale was developed and validated in general practice. This reliable and valid scale measures both physical and mental fatigue, aiding in clinical assessment.

Area of Science:

  • General Practice
  • Psychometrics
  • Health Measurement

Background:

  • Fatigue is a common and often debilitating symptom in primary care.
  • Accurate measurement of fatigue severity is crucial for effective patient management.
  • Existing assessment tools may lack specific validation for general practice populations.

Purpose of the Study:

  • To develop and validate a self-rating scale for measuring fatigue severity.
  • To assess the reliability and validity of the new fatigue scale.
  • To determine the scale's ability to differentiate between physical and mental fatigue components.

Main Methods:

  • Development of a 14-item self-rating fatigue scale.
  • Administration of the scale to 274 general practice registrants and 100 attenders.

Related Experiment Videos

  • Validation using the revised Clinical Interview Schedule (CIS-R) fatigue item and Relative Operating Characteristic (ROC) analysis.
  • Internal consistency and principal components analyses were performed.
  • Main Results:

    • The fatigue scale demonstrated high internal consistency.
    • Principal components analysis supported a two-factor structure: physical and mental fatigue.
    • ROC analysis yielded a sensitivity of 75.5% and specificity of 74.5% for the scale.

    Conclusions:

    • The developed 14-item fatigue scale is a reliable and valid instrument for use in general practice.
    • The scale effectively captures both physical and mental dimensions of fatigue.
    • This tool can aid clinicians in assessing fatigue severity in primary care settings.