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Previews in hypertexts: effects on navigation and knowledge acquisition
Author(s) -
Cress U.,
Knabel O.B.
Publication year - 2003
Publication title -
journal of computer assisted learning
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.583
H-Index - 93
eISSN - 1365-2729
pISSN - 0266-4909
DOI - 10.1046/j.0266-4909.2003.00054.x
Subject(s) - hypertext , computer science , selection (genetic algorithm) , knowledge acquisition , multimedia , information retrieval , world wide web , human–computer interaction , artificial intelligence
In hypertexts, previews can be used as local tools for navigation. They pop up when a link is activated and provide information about the linked page. In an experimental study with 50 participants the effect of previews on searching and knowledge acquisition was investigated. The participants had to explore a hypertext with the aim either to understand as much as they could or to search for information. Previews enhanced knowledge acquisition in both conditions and supported intentional and incidental learning. In the searching condition previews were used for link selection, even if they could not enhance the search results.