Document Detail


A comparison of hypertext and Boolean access to biomedical information.
MedLine Citation:
PMID:  8947616     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This study explored which of two modes of access to a biomedical database better supported problem solving in bacteriology. Boolean access, which allowed subjects to frame their queries as combinations of keywords, was compared to hypertext access, which allowed subjects to navigate from one database node to another. The accessible biomedical data were identical across systems. Data were collected from 42 first year medical students, each randomized to the Boolean or hypertext system, before and after their bacteriology course. Subjects worked eight clinical case problems, first using only their personal knowledge and, subsequently, with aid from the database. Database retrievals enabled students to answer questions they could not answer based on personal knowledge only. This effect was greater when personal knowledge of bacteriology was lower. The results also suggest that hypertext was superior to Boolean access in helping subjects identify possible infectious agents in these clinical case problems.
Authors:
C P Friedman; B M Wildemuth; M Muriuki; S P Gant; S M Downs; R G Twarog; R de Bliek
Related Documents :
7847636 - Correlates of attitudes concerning human immunodeficiency virus and acquired immunodefi...
2246086 - Knowledge about and behaviors affecting the spread of aids: a street survey of intraven...
9603676 - Correlates of hiv risk appraisal in women.
15760696 - Rural perspectives on hiv/aids prevention: a comparative study of thailand and ghana.
18307706 - Childhood obesity and adverse health effects in hong kong.
20184406 - Knowledge translation in abi rehabilitation: a model for consolidating and applying the...
Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Proceedings : a conference of the American Medical Informatics Association / ... AMIA Annual Fall Symposium. AMIA Fall Symposium     Volume:  -     ISSN:  1091-8280     ISO Abbreviation:  Proc AMIA Annu Fall Symp     Publication Date:  1996  
Date Detail:
Created Date:  1997-01-28     Completed Date:  1997-01-28     Revised Date:  2010-12-01    
Medline Journal Info:
Nlm Unique ID:  9617342     Medline TA:  Proc AMIA Annu Fall Symp     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  2-6     Citation Subset:  IM    
Affiliation:
University of North Carolina School of Medicine, Chapel Hill, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Bacteriology*
Computer-Assisted Instruction
Education, Medical, Undergraduate
Evaluation Studies as Topic
Humans
Hypermedia*
Information Storage and Retrieval*
Online Systems*
Grant Support
ID/Acronym/Agency:
R01-LM04843/LM/NLM NIH HHS
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Immunomodulating effects after perinatal exposure to methylmercury in mice.
Next Document:  An intelligent learning environment for advanced cardiac life support.