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首页> 外文期刊>Applied Ergonomics >Does pre-activating domain knowledge foster elaborated online information search strategies? Comparisons between young and old web user adults
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Does pre-activating domain knowledge foster elaborated online information search strategies? Comparisons between young and old web user adults

机译：预激活域知识促进阐述在线信息搜索策略吗？ 年轻和旧网上用户成年人的比较

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摘要

The present study aimed at investigating how pre-activating prior topic knowledge before browsing the web can support information search performance and strategies of young and older users. The experiment focus on analyzing to what extent prior knowledge pre-activation might cope with older users' difficulties when interacting with a search engine. 26 older (age 60 to 77) and 22 young (age 18 to 32) adults performed 6 information search problems related to health and fantastic movies. Overall, results showed that pre-activating prior topic knowledge increased the time spent evaluating the search engine results pages, fostered deeper processing of the navigational paths elaborated (and thus reduced the exploration of different navigational paths) and improved the semantic specificity of queries. Pre-activating prior knowledge helped older adults produced semantically more specific queries when they had lower prior-knowledge than young adults. Moderation analyses indicated that the pre-activation supported older adults' search performance under the condition that participants generated semantically relevant keywords during this pre-activation task. Implications of these results show that prior topic knowledge pre-activation may be a good lead to support the beneficial role of prior knowledge in older users' search behavior and performance. Recommendations for design pre-activation support tool are provided.
机译：目前的研究旨在调查在浏览Web之前的先前主题知识如何支持信息搜索性能和年轻用户的策略。实验专注于分析先前知识预激活在与搜索引擎交互时难以应对旧用户困难的程度。 26名年龄较大（60至77岁）和22名年轻（18至32岁）成年人进行了6个信息搜索问题，与健康和梦幻般的电影相关。总体而言，结果表明，预激活的先前主题知识增加了评估搜索引擎结果页面所花费的时间，促进了阐述的导航路径的更深处理（从而减少了不同导航路径的探索）并改善了查询的语义特异性。预激活的先验知识帮助老年人在比年轻成年人的先前知识较低时产生了语义更具体的查询。审核分析表明，在参与者在此预激活任务期间生成了语义相关关键字的条件下，预激活的预先激活支持的搜索性能。这些结果的含义表明，先前的主题知识预激活可能是一个良好的导致，以支持先前知识在旧用户搜索行为和性能中的有益作用。提供了设计预激活支持工具的建议。

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