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Marchionini, Gary; Liebscher, Peter – Proceedings of the ASIS Annual Meeting, 1991
Describes a study that examined the information-seeking behavior of undergraduate students searching print and electronic encyclopedias to determine how mental models are adapted for different types of media. Cognitive load is discussed; print and electronic systems are compared; differences among three electronic encyclopedias are described; and…
Descriptors: Analysis of Variance, Cognitive Processes, Comparative Analysis, Electronic Publishing
Liebscher, Peter; Marchionini, Gary – School Library Media Quarterly, 1988
This study examined the effectiveness of a simple browse search strategy and a more complex analytical strategy with 25 high school students, using an electronic full-text encyclopedia. Captured keystrokes and student essays were analyzed for retrieval performance and information application. No significant differences between types of search…
Descriptors: Cognitive Structures, Comparative Analysis, Encyclopedias, High Schools
Peer reviewed Peer reviewed
Marchionini, Gary; And Others – Journal of the American Society for Information Science, 1994
Reports on a comparative investigation of WAIS, a networking and finding aid used on the Internet, and a Boolean-based retrieval system. The terms and limitations of the study are described, and the comparative recall and precision rates are given. The problems and potential of WAIS and other highly interactive search systems are presented.…
Descriptors: Comparative Analysis, Computer Networks, Information Networks, Information Retrieval
Peer reviewed Peer reviewed
Marchionini, Gary; And Others – Library and Information Science Research, 1993
Describes four studies that explored how search experts and domain experts conducted searches in full-text, end-user search systems. Problem definition/expectation; query formulation; examination and extraction; reflection, stopping, and search monitoring; and system effects are examined for each study. (26 references) (EA)
Descriptors: Cognitive Processes, Comparative Analysis, Computer Software, Costs
Peer reviewed Peer reviewed
Marchionini, Gary; Teague, Jerry – Journal of Research on Computing in Education, 1987
Describes study that was designed to explore whether elementary students of different ages could effectively use selected electronic information services. The performances of students in grades two-three and grades four-six in using an online encyclopedia are compared, examples of searches are presented, and suggestions for further research are…
Descriptors: Academically Gifted, Age Differences, Comparative Analysis, Computer Assisted Instruction