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Related Experiment Videos

A comparison of hypertext and Boolean access to biomedical information

C P Friedman1, B M Wildemuth, M Muriuki

  • 1University of North Carolina School of Medicine, Chapel Hill, USA.

Proceedings : a Conference of the American Medical Informatics Association. AMIA Fall Symposium
|January 1, 1996
PubMed
Summary

This study compared Boolean and hypertext access for bacteriology problem-solving. Hypertext access proved superior for identifying infectious agents, especially for students with lower prior knowledge.

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Area of Science:

  • Biomedical Informatics
  • Medical Education
  • Bacteriology

Background:

  • Effective database access is crucial for medical problem-solving.
  • Comparing information retrieval systems aids in optimizing learning tools.
  • Bacteriology education requires efficient access to relevant clinical data.

Purpose of the Study:

  • To compare Boolean versus hypertext access modes for database use.
  • To evaluate which system better supports bacteriology problem-solving for medical students.
  • To determine the impact of prior knowledge on system effectiveness.

Main Methods:

  • 42 first-year medical students were randomized to Boolean or hypertext systems.
  • Students completed clinical case problems before and after a bacteriology course.

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  • Database use was assessed for its impact on answering questions beyond personal knowledge.

    • Main Results:

    • Database retrieval significantly improved students' ability to answer questions.
    • The benefit of database use was more pronounced in students with lower bacteriology knowledge.
    • Hypertext access demonstrated superiority over Boolean access for identifying infectious agents.

    Conclusions:

    • Database access enhances problem-solving in bacteriology for medical students.
    • Hypertext systems may offer advantages over Boolean systems for clinical case analysis.
    • System design impacts the effectiveness of biomedical database utilization in medical education.