数字图书馆用户检索失败的影响因素研究

Research on the Factors Affecting Search Failure in Digital Library

[目的/意义]探讨任务类型、用户的认知需求与自我效能对数字图书馆用户检索失败的影响。[方法/过程]以认知复杂度为依据,设计5种类型的任务,招募30名图书馆用户,通过屏幕录制方法收集数据。[结果/结论]研究表明,任务类型和认知需求对整个任务的失败有显著性影响,而自我效能更多的影响检索过程中的阶段性提问失败。具体表现为:用户在完成认知复杂度越高的任务时,越容易遭遇任务失败;高认知需求的用户在完成任务时会遭遇较少的任务失败次数,且对任务的完成程度评价较高;高自我效能的用户则在检索过程中会遭遇较少的提问失败次数。

[ Purpose/ signiflcance ] This paper discusses how task type, need for cognition and self -efficacy influence the frequency of failure.[ Method/process ] Using a cognitive complexity framework, the research designs five search tasks, and recruits 30 participants of Beijing Normal University to conduct takes. It obtains the relevant data by recording the participants searching process.[ Result/ conclusion ] Task type and need for cognition have impact on the task of failure, and self -efficacy has impact on the query of failure. The users are more likely to encounter task failures, when they complete higher cognitive complexity of the tasks. The higher cognitive needs users will encounter smaller number of task failures, and have higher evaluation of the task. Higher self-efficacy users will encounter smaller number of query failures.