Pii: S0306-4573(01)00057-7
نویسندگان
چکیده
This study examined the success and information seeking behaviors of seventh-grade science students and graduate students in information science in using Yahooligans! Web search engine/directory. It investigated these users’ cognitive, affective, and physical behaviors as they sought the answer for a factfinding task. It analyzed and compared the overall patterns of children’s and graduate students’ Web activities, including searching moves, browsing moves, backtracking moves, looping moves, screen scrolling, target location and deviation moves, and the time they took to complete the task. The authors applied Bilal’s Web Traversal Measure to quantify these users’ effectiveness, efficiency, and quality of moves they made. Results were based on 14 children’s Web sessions and nine graduate students’ sessions. Both groups’ Web activities were captured online using Lotus ScreenCam, a software package that records and replays online activities in Web browsers. Children’s affective states were captured via exit interviews. Graduate students’ affective states were extracted from the journal writings they kept during the traversal process. The study findings reveal that 89% of the graduate students found the correct answer to the search task as opposed to 50% of the children. Based on the Measure, graduate students’ weighted effectiveness, efficiency, and quality of the Web moves they made were much higher than those of the children. Regardless of success and weighted scores, however, similarities and differences in information seeking were found between the two groups. Yahooligans! poor structure of keyword searching was a major factor that contributed to the ‘‘breakdowns’’ children and graduate students experienced. Unlike children, graduate students were able to recover from ‘‘breakdowns’’ quickly and effectively. Three main factors influenced these users’ performance: ability to recover from ‘‘breakdowns’’, navigational style, and focus on task. Children and graduate students made recommendations for improving Yahooligans! interface design. Implications for Web user training and system design improvements are made. 2002 Elsevier Science Ltd. All rights reserved. * Corresponding author. Tel.: +1-865-974-3689. E-mail addresses: [email protected] (D. Bilal), [email protected] (J. Kirby). 0306-4573/02/$ see front matter 2002 Elsevier Science Ltd. All rights reserved. PII: S0306-4573(01)00057-7 Information Processing and Management 38 (2002) 649–670 www.elsevier.com/locate/infoproman
منابع مشابه
Some thoughts on the reported results of TREC
The periodic TRECs ± Text REtrieval Conferences ± have reported the results of a variety of recall studies in large-scale document retrieval. While the eorts of TREC are noteworthy and laudable, there are reasons why its results, especially the recall values which are central to its conclusions, should be accepted with some caution.
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The results from a series of three experiments that used Text Retrieval Conference (TREC) data and TREC search topics are compared. These experiments each involved three novel user interfaces (one per experiment). User interfaces that made it easier for users to view text were found to improve recall in all three experiments. A distinction was found between a cluster of subjects (a majority of ...
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