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Undergraduates Prefer Federated Searching to Searching Databases Individually

机译:大学生更喜欢联合搜索而不是单独搜索数据库

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A Review of: Belliston, C. Jeffrey, Jared L. Howland, & Brian C. Roberts. “Undergraduate Use of Federated Searching: A Survey of Preferences and Perceptions of Value-Added Functionality.” College & Research Libraries 68.6 (Nov. 2007): 472-86. Objective – To determine whether use of federated searching by undergraduates saves time, meets their information needs, is preferred over searching databases individually, and provides results of higher quality. Design – Crossover study. Setting – Three American universities, all members of the Consortium of Church Libraries & Archives (CCLA): BYU (Brigham Young University, a large research university); BYUH (Brigham Young University – Hawaii, a small baccalaureate college); and BYUI (Brigham Young University – Idaho, a large baccalaureate college) Subjects – Ninety-five participants recruited via e-mail invitations sent to a random sample of currently enrolled undergraduates at BYU, BYUH, and BYUI. Methods – Participants were given written directions to complete a literature search for journal articles on two biology-related topics using two search methods: 1. federated searching with WebFeat? (implemented in the same way for this study at the three universities) and 2. a hyperlinked list of databases to search individually. Both methods used the same set of seven databases. Each topic was assigned in random order to one of the two search methods, also assigned in random order, for a total of two searches per participant. The time to complete the searches was recorded. Students compiled their list of citations, which were later normalized and graded. To analyze the quality of the citations, one quantitative rubric was created by librarians and one qualitative rubric was approved by a faculty member at BYU. The librarian-created rubric included the journal impact factor (from ISI’s Journal Citation Reports?), the proportion of citations from peer-reviewed journals (determined from Ulrichsweb.com?) to total citations, and the timeliness of the articles. The faculty-approved rubric included three criteria: relevance to the topic, quality of the individual citations (good quality: primary research results, peer-reviewed sources), and number of citations. Data were then analysed using ANOVA and MANOVA. Finally, librarians at the ACRL 13th National Conference Presentation were polled about their perceptions of the time savings of federated searching, whether the method meets undergraduates’ information needs, undergraduate preference for searching, and the quality of citations found. Main Results – Seventy percent of all participants preferred federated searching. For all schools combined, there was no statistically significant difference between the average time taken using federated searching (20.34 minutes) vs. non-federated searching (22.72 minutes). For all schools combined, there was a statistically significant difference in satisfaction of results favouring federated searching (5.59/7 vs. 4.80/7 for non-federated searching, α = .05). According to the librarian-created rubric, citations retrieved from federated searching were a statistically significant 6% lower in quality than citations retrieved from non-federated searching (α = .05). The faculty-approved rubric did not detect a difference in the quality of the citations retrieved using the 2 methods. Librarians’ perceptions as assessed at the ACRL 13th National Conference Presentation generally matched the authors’ findings. Conclusion – Overall, students in this study preferred federated searching, were more satisfied with the results of federated searching, and saved time (although the savings were not statistically significant). The quality of citations retrieved via both methods was judged to be similar. The study provides useful information for librarians interested in users’ experiences and perceptions of federated searching, and indicates future studies worth conducting.
机译:评论者:贝里斯顿,C·杰弗里,贾里德·豪兰德和布莱恩·C·罗伯茨。 “本科生对联合搜索的使用:对增值功能的偏好和看法的调查。”大学与研究图书馆68.6(2007年11月):472-86。目标–确定大学生使用联合搜索是否可以节省时间,满足他们的信息需求,而不是单独搜索数据库,并提供更高质量的结果。设计–交叉研究。地点-三所美国大学,均为教堂图书馆与档案馆联合会(CCLA)的所有成员:BYU(杨百翰大学,大型研究型大学); BYUH(杨百翰大学–夏威夷,一所小型文凭大学);和BYUI(杨百翰大学–爱达荷州,一所大型文凭大学)主题–通过电子邮件邀请招募了95名参与者,这些邀请被随机发送给BYU,BYUH和BYUI的当前在校本科生。方法–使用两种搜索方法为参与者提供书面指导,以完成对两个生物学相关主题的期刊文章的文献搜索:1.使用WebFeat联合搜索? (在三所大学中以相同的方式实现本研究)和2.单独搜索的数据库超链接列表。两种方法都使用相同的七个数据库集。每个主题以随机顺序分配给两种搜索方法之一,也以随机顺序分配,每个参与者总共进行两次搜索。记录完成搜索的时间。学生编制了他们的引文清单,随后对其进行了归一化和分级。为了分析引文的质量,图书馆员创建了一个定量的标题,BYU的一位教师批准了一个定性的标题。图书馆员创建的标题包括期刊影响因子(来自ISI的Journal Citation Reports?),来自同行评审期刊的引用(由Ulrichsweb.com确定)与总引用量的比例以及文章的及时性。经教师批准的规则包括三个标准:与主题的相关性,单个引用的质量(良好质量:主要研究结果,经过同行评审的来源)以及引用次数。然后使用ANOVA和MANOVA分析数据。最后,在ACRL第13届全国会议演讲中对馆员进行了民意测验,了解他们对联邦搜索节省时间,该方法是否满足大学生的信息需求,大学生对搜索的偏好以及所发现引文的质量。主要结果–所有参与者中有70%倾向于联合搜索。对于所有合并的学校,使用联合搜索(20.34分钟)与不联合搜索(22.72分钟)所花费的平均时间之间没有统计学上的显着差异。对于所有合并的学校,对联邦搜索的满意程度在统计上有显着差异(非联邦搜索为5.59 / 7与4.80 / 7,α= 0.05)。根据馆员创建的标题,从联邦搜索检索到的引文的质量在统计上比从非联邦搜索检索到的引文低6%(α= 0.05)。经教师批准的规则没有发现使用这两种方法检索到的引文质量存在差异。在ACRL第13届全国会议演讲中评估的馆员的看法总体上与作者的发现相符。结论–总的来说,本研究的学生更喜欢联邦搜索,对联邦搜索的结果更满意,并且节省了时间(尽管节省的金额在统计上并不显着)。通过这两种方法检索到的引文质量被判断为相似。该研究为对用户的体验和对联合搜索的看法感兴趣的图书馆员提供了有用的信息,并指出了值得进行的未来研究。

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