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Dual-task performance as a measure of mental effort in searching a library system and the Web

dc.contributor.authorKim, Yong-Mien_US
dc.contributor.authorRieh, Soo Youngen_US
dc.date.accessioned2007-01-17T15:56:21Z
dc.date.available2007-01-17T15:56:21Z
dc.date.issued2005en_US
dc.identifier.citationKim, Yong-Mi; Rieh, Soo Young (2005)."Dual-task performance as a measure of mental effort in searching a library system and the Web." Proceedings of the American Society for Information Science and Technology 42(1): NA-NA. <http://hdl.handle.net/2027.42/49317>en_US
dc.identifier.issn0044-7870en_US
dc.identifier.issn1550-8390en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/49317
dc.description.abstractThis paper examines a dual-task method for the assessment of mental effort during online searching, having the users engage in two tasks simultaneously. Searching was assigned as a primary task and a visual observation was set up as a secondary task. The study participants were asked to perform two searches, one on the Web and the other in a web-based library system. Perceived search difficulty and mental effort for searching on the two types of systems were compared through participant self-reports, dual-task performance, and search log analysis. After the searches were completed, the subjects reported that library searching was more difficult to conduct and they had to concentrate more than when Web searching. However, the results of dual-task performance do not reveal much difference in mental effort or concentration during searches in the two systems. Rather, they invested mental effort differently when viewing search results and reading retrieved documents. The findings indicate that a dual-task method provides a useful technique to measure mental effort in online searching, and it has a great potential to be used to measure other aspects of information retrieval such as task complexity and multitasking information behavior.en_US
dc.format.extent1117837 bytes
dc.format.extent3118 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.language.isoen_US
dc.publisherWiley Subscription Services, Inc., A Wiley Companyen_US
dc.subject.otherComputer Scienceen_US
dc.titleDual-task performance as a measure of mental effort in searching a library system and the Weben_US
dc.typeArticleen_US
dc.rights.robotsIndexNoFollowen_US
dc.subject.hlbsecondlevelInformation and Library Scienceen_US
dc.subject.hlbtoplevelSocial Sciencesen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumSchool of Information, University of Michigan, 1075 Beal Ave., Ann Arbor, MI 48109-2112 ; School of Information, University of Michigan, 1075 Beal Ave., Ann Arbor, MI 48109-2112en_US
dc.contributor.affiliationumSchool of Information, University of Michigan, 1085 South University Ave., Ann Arbor, MI 48109-1107en_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/49317/1/14504201155_ftp.pdfen_US
dc.identifier.doihttp://dx.doi.org/10.1002/meet.14504201155en_US
dc.identifier.sourceProceedings of the American Society for Information Science and Technologyen_US
dc.owningcollnameInterdisciplinary and Peer-Reviewed


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