Hypertext on hypertext: IBM PC & compatibles
Hypertext on hypertext: IBM PC & compatibles
Formative design evaluation of superbook
ACM Transactions on Information Systems (TOIS)
Information-seeking strategies of novices using a full-text electronic encyclopedia
Journal of the American Society for Information Science
Information retrieval using a hypertext-based help system
ACM Transactions on Information Systems (TOIS)
Behavioral evaluation and analysis of a hypertext browser
CHI '89 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Making the transition from print to electronic encyclopaedias: adapation of mental models
International Journal of Man-Machine Studies
Memex as an image of potentiality revisited
From Memex to hypertext
Memex: getting back on the trail
From Memex to hypertext
From trailblazing to guided tours: the legacy of Vannevar Bush's vision of hypertext use
From Memex to hypertext
Hypertext or book: Which is better for answering questions?
CHI '92 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Knowledge-based search tactics
Information Processing and Management: an International Journal
International Journal of Man-Machine Studies
Evaluating hypermedia and learning: methods and results from the Perseus Project
ACM Transactions on Information Systems (TOIS)
Information Processing and Management: an International Journal
An exploratory evaluation of three interfaces for browsing large hierarchical tables of contents
ACM Transactions on Information Systems (TOIS)
Relevance and retrieval evaluation: perspectives from medicine
Journal of the American Society for Information Science - Special issue: relevance research
Information seeking in electronic environments
Information seeking in electronic environments
Searcher response in a hypertext-based bibliographic information retrieval system
Journal of the American Society for Information Science
Medical students' personal knowledge, searching proficiency, and database use in problem solving
Journal of the American Society for Information Science
Journal of the American Society for Information Science
ACM Transactions on Computer-Human Interaction (TOCHI)
A task-oriented approach to information retrieval evaluation
Journal of the American Society for Information Science - Special issue: evaluation of information retrieval systems
Fourth generation hypermedia: some missing links for the World Wide Web
International Journal of Human-Computer Studies - Special issue: World Wide Web usability
User interfaces to information systems: choices vs. commands
SIGIR '83 Proceedings of the 6th annual international ACM SIGIR conference on Research and development in information retrieval
Experimental evaluation of hypertext access structures
Journal of Software Maintenance: Research and Practice
Searching the web: operator assistance required
Information Processing and Management: an International Journal
Browsing a document collection represented in two-and three-dimensional virtual information space
International Journal of Human-Computer Studies
Situational relevance and task outcome
IIiX Proceedings of the 1st international conference on Information interaction in context
ACM Transactions on Computer-Human Interaction (TOCHI)
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This study compared of two modes of access to a biomedical database, in terms of their effectiveness and efficiency in supporting clinical problem solving and in terms of user preferences. 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 system versions. Performance data were collected from two cohorts of first-year medical students, each student randomly assigned to either the Boolean or the hypertext system. Additional attitudinal data were collected from the second cohort. At each of two research sessions (one just before and one just 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 alone. This effect was greater when personal knowledge of bacteriology was lower. There were not statistically significant differences between the two forms of access, in terms of problem-solving effectiveness or efficiency. Students preferred Boolean access over hypertext access.