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Related Experiment Videos

The Toronto Breast Self-Examination Instrument (TBSEI): its development and reliability and validity data.

L E Ferris1, J Shamian, F Tudiver

  • 1Department of Behavioural Science, Faculty of Medicine, University of Toronto, Ontario, Canada.

Journal of Clinical Epidemiology
|January 1, 1991
PubMed
Summary

The Toronto Breast Self-Examination Instrument (TBSEI) is a reliable and valid survey for breast self-examination. This study confirms its psychometric properties, supporting its use in breast cancer research.

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Area of Science:

  • Oncology
  • Medical Sociology
  • Psychometrics

Background:

  • Breast cancer remains a significant global health concern.
  • Early detection through breast self-examination (BSE) is crucial.
  • A validated instrument is needed for accurate BSE assessment.

Purpose of the Study:

  • To describe the development of the Toronto Breast Self-Examination Instrument (TBSEI).
  • To evaluate the reliability and validity of the TBSEI.
  • To provide age norms for the TBSEI scales.

Main Methods:

  • The TBSEI was developed as a self-administered survey.
  • Reliability and validity were assessed in 729 women in Toronto, Ontario.
  • Psychometric properties including internal consistency and test-retest reliability were analyzed.

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Main Results:

  • The TBSEI demonstrated good face and content validity.
  • Internal consistency reliability was high (0.91, 0.69, 0.85).
  • Test-retest reliability was also strong (0.89).

Conclusions:

  • The TBSEI is a reliable and valid instrument for assessing breast self-examination practices.
  • The findings support the continued use of the TBSEI in research and clinical settings.
  • Age norms are provided to aid in the interpretation of TBSEI scores.