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1.
Health information consumers and patients increasingly take an active role in seeking health information online and in sharing their health problems and concerns in online support groups and social media venues. However, they may risk being influenced by unreliable and misleading information in such environments, as no intermediaries monitor the quality of this information. This study focuses on evaluating the quality of health information exchanged in one of the social media venues, by investigating how librarians, nurses, and users assessed the quality of health answers in Yahoo! Answers, a social question-and-answering (Q&A) service. Through statistical analysis differences among the three participant groups, how the background characteristics influenced their assessments, and the relationships between characteristics of the content of answers and quality evaluation criteria were each considered in detail. Librarians and nurses shared similar ratings of answer quality, but had differences in their level of medical knowledge and the types of services they offer, resulting in minor differences across criteria. Users perceived the quality of health answers in social Q&A to be higher than librarians and nurses for almost all criteria. Depending on the sources of information presented in health answers, librarians, nurses, and users gave different quality assessments. Implications exist for research into and practice of evaluating the quality of health information, which need to address both search and domain expertise along with the sharing of socioemotional values preferred by users. 相似文献
2.
Samuel Kai Wah Chu Hong Huang Wendy Nga Man Wong Wouter F. van Ginneken Kendra M. Wu Miu Yan Hung 《Library & information science research》2018
This study investigated the quality and clarity of health information from a total of 238 (126 English and 112 Chinese) answers retrieved from Yahoo!Answers sites. Registered nurses and library professionals judged information quality based on 8 criteria: accuracy, completeness, relevance, readability, verifiability, professional advice, usefulness and non-commercialization. Writing clarity was assessed through rhetorical structure analysis. Results showed that 46% of answers were of poor quality. Furthermore, many Q&A site users were unable to distinguish adequately between high- and low-quality answers. Only 60% of their selected best-answers corresponded to those of the health professionals. These results indicate that the reliability of health information on Q&A sites is questionable. This unreliability may partially be due to the fact that Q&A site answers contain both medical information and social support. Although both are important, they are not always compatible. It may even be dangerous to mistakenly present social support as objective medical information. This research suggests that medical advice and social support should be separated. This has a further advantage in that medical advice could be subjected to stringent, necessary quality assurance measures, without interfering with social support. 相似文献
3.
[目的/意义] 代表他人使用互联网搜寻健康信息成为非医学专业人员为患者提供健康信息支持的重要形式，了解替代搜寻者特征及其行为模式将对健康信息服务与传播具有积极意义。[方法/过程] 从参与者人口统计、健康信息搜寻经验和家庭结构3个方面的个体特征变量进行调查，并基于5W（Why-Who-When-Where-What）视角对健康信息替代搜寻者的行为模式进行分析。其中，除了对行为动机Why使用半结构化访谈之外，其余变量均通过问卷调查方法进行测量。[结果/结论] 研究发现，87.0%的在线健康信息搜寻者在近12个月内有帮助别人在线搜寻健康信息的经历；健康信息替代搜寻者的特征包括女性、独生子女、已婚、健康状态较好、有丰富的在线健康信息搜寻经验以及家人有慢性病患者；健康信息替代搜寻者的行为动机包括关怀、利他主义等；替代搜寻者更多地帮助与他们有强社会关系的人搜寻健康信息；替代搜寻者一般在患者就医之前帮助他们在线搜寻健康信息；替代搜寻者的信息来源于搜索引擎、在线健康社区和在线问答社区等；替代搜寻者更加需要与疾病本身相关的一般性信息、日常保健以及治疗相关的信息。 相似文献
4.
[目的/意义] 代表他人使用互联网搜寻健康信息成为非医学专业人员为患者提供健康信息支持的重要形式，了解替代搜寻者特征及其行为模式将对健康信息服务与传播具有积极意义。[方法/过程] 从参与者人口统计、健康信息搜寻经验和家庭结构3个方面的个体特征变量进行调查，并基于5W（Why-Who-When-Where-What）视角对健康信息替代搜寻者的行为模式进行分析。其中，除了对行为动机Why使用半结构化访谈之外，其余变量均通过问卷调查方法进行测量。[结果/结论] 研究发现，87.0%的在线健康信息搜寻者在近12个月内有帮助别人在线搜寻健康信息的经历；健康信息替代搜寻者的特征包括女性、独生子女、已婚、健康状态较好、有丰富的在线健康信息搜寻经验以及家人有慢性病患者；健康信息替代搜寻者的行为动机包括关怀、利他主义等；替代搜寻者更多地帮助与他们有强社会关系的人搜寻健康信息；替代搜寻者一般在患者就医之前帮助他们在线搜寻健康信息；替代搜寻者的信息来源于搜索引擎、在线健康社区和在线问答社区等；替代搜寻者更加需要与疾病本身相关的一般性信息、日常保健以及治疗相关的信息。 相似文献
5.
《期刊图书馆员》2013,64(1):91-105
The use of Q&A for serials fund accounting and for generating related management information is described. Q&A is a flat-file database management system used with IBM compatible microcomputers. The file structures of the accounting system are outlined as are the procedures for obtaining various management reports. 相似文献
6.
[目的/意义]研究旨在回答不同探索式搜寻意图的用户如何表达信息需求,不同的需求表达倾向于采用哪种搜寻策略,以及该选择机制如何受用户预期绩效的影响。[方法/过程]通过理论研究探索用户搜寻意图的复杂性和搜寻策略的多元化,结合用户需求表达和用户预期绩效的分析,建立用户探索式搜寻意图对搜寻策略选择的影响机制的理论研究框架,通过情景模拟问卷获取搜寻行为数据,以揭示无向信息收集、有向信息收集、知识获取、建议咨询、社会联系5种探索式搜寻意图在选择综合搜索引擎、专业搜索引擎、个人空间SMQA、问答平台提问和短视频网站浏览策略时的策略偏好及其成因。[结果/结论]研究表明,探索式搜寻意图需求表达的差异受搜寻目标的性质和用户认知能力的影响;不同需求表达的搜寻策略选择具有显著差异;预期绩效的调节作用促进了探索式搜寻策略选择的多元化和策略转换。 相似文献
7.
[目的/意义]研究旨在回答不同探索式搜寻意图的用户如何表达信息需求,不同的需求表达倾向于采用哪种搜寻策略,以及该选择机制如何受用户预期绩效的影响。[方法/过程]通过理论研究探索用户搜寻意图的复杂性和搜寻策略的多元化,结合用户需求表达和用户预期绩效的分析,建立用户探索式搜寻意图对搜寻策略选择的影响机制的理论研究框架,通过情景模拟问卷获取搜寻行为数据,以揭示无向信息收集、有向信息收集、知识获取、建议咨询、社会联系5种探索式搜寻意图在选择综合搜索引擎、专业搜索引擎、个人空间SMQA、问答平台提问和短视频网站浏览策略时的策略偏好及其成因。[结果/结论]研究表明,探索式搜寻意图需求表达的差异受搜寻目标的性质和用户认知能力的影响;不同需求表达的搜寻策略选择具有显著差异;预期绩效的调节作用促进了探索式搜寻策略选择的多元化和策略转换。 相似文献
8.
中英文网络问答社区比较研究与评价实验 总被引：1，自引：0，他引：1
对Web2.0环境下12个典型的中英文网络互动问答社区的基本信息、交互性、个性化服务等方面进行比较研究,并通过一个问答实验按照三个领域4类问题,对其回答问题的质量与效率等方面进行评价。研究结果对网络问答社区的进一步完善与发展提出建议。 相似文献
9.
This study examines the uses and gratifications (U&G) of accessing political candidate profiles on social network Web sites. An online survey of visitors to the MySpace profiles of 2008 primary candidates revealed that voters are drawn to this source of political information mainly by the desire for social interaction with other like-minded supporters, followed by information-seeking, and entertainment. While information seeking and entertainment are common U&G of consuming online political content, they were weaker factors compared to the social interaction factor that seems to distinguish MySpace, possibly SNSs in general, from other online sources of political content. 相似文献
10.
[目的/意义] 基于社会化问答平台提问回复率较低的现状，通过预测提问回复率，能够为社会化问答平台提升用户活跃度与留存率，改善用户体验提供参考。[方法/过程] 以"百度知道"为研究平台，抓取平台设置的14个话题下共10 640条提问记录，从提问特征与提问者特征角度，构建提问回复率影响因素的研究框架。采用二元Logistic回归对影响因素进行数据验证，构建提问回复率的预测模型，对模型准确率进行验证。[结果/结论] 社会化问答平台提问回复率研究可改善平台信息服务质量与促进用户知识贡献行为，实验结果验证了研究模型在社会化问答平台提问回复率预测中的有效性。 相似文献
11.
[目的/意义] 针对传统IPA方法在研究中存在的问题,引入一种改进型IPA理论(RIPA)并对社会问答平台答案质量进行研究,从而引导社会问答平台运营商更好地开展服务,提高信息资源内容质量。[方法/过程] 通过分析传统IPA方法在理论上存在的不足,引入一种新的RIPA理论,比较两者在社会问答平台答案质量中的应用,并对研究结果进行相关分析。[结果/结论] RIPA和IPA两种方法在社会问答平台答案质量研究中的应用表明,前者有更高的可行度;同时,"完整性"、"专业性"和"权威性"3个指标是解决社会问答平台答案质量的关键因素,并对社会问答平台的建设提出相关建议。 相似文献
12.
[目的/意义]作为目前主流的在线问答社区模式,免费和付费在线问答社区为用户提供了不同的信息交互场景,能够满足差异化的用户需求。本文通过对两类社区用户参与行为的比较,深入揭示了他们之间的行为差异,对两类社区服务模式的优化提供了对策和建议。[方法/过程]采用列联表分析、非参数检验和负二项回归等方法对免费和付费在线问答社区用户的参与特征和交互影响关系进行了分析。[结果/结论]研究发现免费和付费在线问答社区用户在信息需求、参与特征和交互影响关系上存在诸多差异,其中免费在线问答社区具有最多的观点型问题,付费在线问答社区具有最多的建议型问题;免费提问者倾向于用抽象、概括的方式提出问题,付费提问者则倾向于提供详细的背景信息;问题长度负向影响免费回答的数量和长度,正向影响付费回答的长度;问题长度、回答长度正向影响免费和付费评价数量。本文丰富了对在线问答社区用户参与行为的研究,为免费和付费两类社区服务模式优化提供了一定的管理建议。 相似文献
13.
Xianjin Zha Fenfang Cao Yalan Yan Jia Guo Juan Wang 《The Journal of Academic Librarianship》2019,45(5):102045
Drawing on adaptive structuration theory (AST), this study develops a research model to explore innovative information seeking in the context of digital libraries from the perspectives of cognitive switching and affinity. Innovative information seeking behavior is the combination of innovative IT (information technologies) use behavior and information seeking behavior and subsequently refers to innovative IT use oriented to information seeking. A research model was developed and survey data were collected. The partial least squares (PLS) structural equation modeling (SEM) was employed to verify the research model. The findings suggest that affinity with digital libraries is the most powerful determinant of innovative information seeking. Meanwhile, task nonroutineness and disconfirmation have positive effects on innovative information seeking; the effect of social influence on innovative information seeking is overpowered by affinity with digital libraries. The findings and their implications for theory and practice are discussed. 相似文献
14.
Cherrie L. Moore 《期刊图书馆员》2016,71(2):138-145
This article synthesizes seven peer-reviewed articles that investigate the varying roles of social networking sites, cyber peers, and social capital in the information seeking behavior of adolescents. The theoretical approaches of Brenda Dervin, Elfreda Chatman, and Carol Kuhlthau are instrumental in establishing the basis for the research in terms of information seeking behavior. There are three main foci of the research synthesized: information seeking behavior and information needs; maturation or development and behavioral norms; and the ideas of sociability or social capital and bridging capital. 相似文献
15.
老年人网络健康信息查寻行为影响因素研究 总被引：9，自引：4，他引：5
[目的/意义] 探索网络环境下我国老年人健康信息查寻行为的影响因素,构建相关概念框架模型,为更合理化地开展老年人健康信息服务予以理论指引和支撑.[方法/过程]采用半结构访谈法收集35位老年人在网络环境下进行健康信息查寻活动的相关数据,通过扎根理论归纳出影响老年人网络健康信息查寻行为的14个概念范畴并聚焦为4个核心范畴.基于对概念范畴的分析,指出影响老年人网络健康信息查寻行为的4个主要因素,并构建网络健康信息查寻行为影响因素模型.[结果/结论]个人心理因素、个人实施成本、信息因素和社会因素是影响老年人网络健康信息查寻行为的主要因素.其中,个人心理因素和个人实施成本是内部因素,直接决定老年人网络健康信息查寻行为模式;信息因素、社会因素是外部情境条件,分别影响着内部因素与信息查寻行为之间的关系强度. 相似文献
16.
社会化问答社区的出现改变了原有的问答模式并拓展了知识获取的途径。回答者作为知识的主要贡献者,是促进问答社区内知识传递的核心要素。现有关于问答社区用户的研究普遍以用户的属性数据为依据,较少考虑使用个体连接所形成的关系数据进行分析。本文以中文问答社区"知乎"为研究对象,爬取了"流行音乐"和"英语学习"两个话题下的大规模数据,通过构建回答者关注关系网络,定义和量化直接连接和间接连接两类同伴关系,使用网络自回归模型探究同伴效应对知识贡献行为的影响。研究发现,回答者的知识贡献行为会受到直接和间接连接同伴效应的正向影响,但是间接连接同伴效应会随着回答者网络密度的增加而逐渐减弱甚至消失,聚类系数对回答者的知识贡献行为有负向影响。 相似文献
17.
This study investigated the self-efficacy perceptions of Israeli library and information science students regarding their information seeking behavior. That is, it examined the judgments that participants make of their searching abilities. The study was based on Bandura's four sources of self-efficacy information: past performance or mastery experiences, vicarious experiences of observing the experiences of others, social feedback and affective states. An online survey presenting the Information Seeking Self-Perception Scale (IRSPS) was distributed and 205 students completed the questionnaire anonymously. Findings show that participants reported a high level of self-efficacy and that three of the four sources of self-efficacy information were significant in constructing their self-efficacy beliefs. Correlations between self-efficacy percepts and several socio-demographic variables revealed no gender-based differences. A significant correlation was found between age and degree and the sources with more influence. Older postgraduate students reported being more impacted by their mastery experiences, their affective states and social feedback. The implementation of the Information Seeking Self-Perception Scale (IRSPS) can be valuable when designing and implementing LIS academic programs for different groups of students. 相似文献
18.
This study investigated which social media platforms are used as information sources, and for what purposes. It also examined how user characteristics are related to the use of different platforms. A Web-based survey was used to collect data from undergraduate students. Responses from more than 800 students showed that most of the social media platforms are used as information sources, where wikis, user reviews, and media-sharing sites emerged as the top platforms. The purpose of use varied across platforms. T-test and ANOVA results also revealed individual differences. Significant differences in gender, class level, academic discipline, and Big Five personality traits were found in the frequency of information seeking using different platforms and also in the purpose of use. Study findings have implications for information literacy (IL) education and information services. Because many students are actively using social media platforms for a variety of information-seeking purposes, it is suggested that IL programs embrace social media as potential information sources and offer effective strategies for using and evaluating these increasingly popular social media sources. 相似文献
19.
[目的/意义]现有的关键词提取方法不适应社会化问答社区文本长度较短、内容表述口语化、数据集稀疏的特点,且很少考虑用户关注程度对词语重要性的影响,不能有效地提取此类文本的关键词,因此,提出针对社会化问答社区的多属性加权关键词提取方法。[方法/过程]多属性加权关键词提取方法通过引入调节函数和词性对传统TF-IDF进行改进,并通过线性加权融合用户回答数、关注数、浏览数以及评论数4个用户关注属性来综合度量词语权重。[结果/结论]实验表明,该方法能更有效地提取社会化问答社区文本的关键词。 相似文献
20.
跨源健康信息搜寻的动机、信息源选择及行为路径 总被引：1，自引：0，他引：1
本研究旨在探究用户面临多种健康信息源时的跨源健康信息搜寻行为,揭示这类信息搜寻行为的动机、信息源选择和行为路径。结合日记法和半结构化深度访谈法,收集并分析了26名参加者的健康信息搜寻日记及跟踪访谈数据,使用NVivo11分析数据。研究发现医生-用户交流障碍、信任缺失、用户自我调节和用户安全心理的需要是促使跨源健康信息搜寻行为产生的动机。相似病症用户的自我陈述、用户的路径依赖(习惯)、从众心理、信息源的权威性及可信度是影响用户跨源过程中信息源选择的主要因素。此外,用户跨源搜寻健康信息的过程中,其心理需求大于实际需求、凭“感觉”感知网络健康信息质量等特征较明显。本研究构建了跨源健康信息搜寻行为路径模型,研究的结果有助于提升用户健康信息搜寻行为认知,改善其跨源健康信息获取能力,提升其健康信息素养;同时,也为相关部门制定提升公民健康信息素养策略及支持跨源健康信息搜寻行为的信息系统的开发和设计提供了借鉴。 相似文献