中文摘要：

Forrester研究公司提供了5279名用户基于11个用户体验评价指标对4种搜索引擎进行有效性评价的结果，应用探索性因素分析法研究其内在影响因素。结果表明：①搜索引擎有效性的用户体验包含两个主要维度：内容准确性和内容直接性，是对11个评价指标的有效综合；文献综述结果表明，两个维度的用户体验具有相应的用户行为模式支持；②以内容准确性和内容直接性为评价指标对4种主流搜索引擎进行用户体验评估，评估结果与搜索引擎特征以及第三方评估结果相一致，并能有效解释搜索引擎特征与用户体验之间的关系。

英文摘要：

Forrester Research Inc. provided an evaluation result on search engine effectiveness, which included the marks of 4 search engines given by 5, 279 users based on 11 evaluation items. Exploratory factor analysis was used to find the structure of the evaluation data. The results show that ： （1） Contents accuracy and contents accessibility are two main factors of user experience on search engine effectiveness, which was consistent with reported user be- havior patterns ; （2） The two obtained factors were used to evaluate the user experience on search effectiveness of top 4 search engines; the evaluation results are highly relative to the search engine feature and the 3rd party evaluation results, and the two factors are also a bond between the search engine feature and the user experience.