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Concurrent validity of a rule-based system

M Hirsch1, B L Chang, K Jensen

  • 1School of Nursing, University of California at Los Angeles 90025-1702.

Computers in Nursing
|May 1, 1993
PubMed
Summary
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This study validated a rule-based expert system for nursing diagnoses. The system

Area of Science:

  • Nursing Informatics
  • Clinical Decision Support Systems
  • Artificial Intelligence in Healthcare

Background:

  • Expert systems offer potential for standardized clinical decision support.
  • Validating the accuracy of automated diagnostic recommendations is crucial for clinical integration.
  • Common nursing diagnoses require reliable and efficient identification methods.

Purpose of the Study:

  • To assess the concurrent validity of nursing diagnoses generated by a rule-based expert system.
  • To compare the system's diagnostic output against expert clinical judgment.
  • To evaluate the system's performance for common nursing diagnoses.

Main Methods:

  • Concurrent validity was tested by comparing expert system diagnoses with those of a Clinical Nurse Specialist Assessor.

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  • A panel of 10 Clinical Nurse Specialists (CNS Panel) also reviewed the expert system's candidate diagnoses.
  • The expert system's rule base included common nursing diagnoses such as impaired physical mobility and self-care deficit.

    • Main Results:

    • The study compared the expert system's diagnostic recommendations against human expert assessments.
    • Validation involved direct comparison with a single Clinical Nurse Specialist Assessor and a panel of 10 specialists.
    • The rule base encompassed frequently encountered nursing diagnoses, including activity intolerance and potential for infection.

    Conclusions:

    • The concurrent validity of the expert system's nursing diagnoses requires thorough evaluation.
    • Comparison with both individual and panel expert assessments provides a robust validation approach.
    • The findings will inform the refinement and implementation of expert systems in nursing practice.