社会化媒体用户学术信息搜寻行为研究成果

(1)开发和检验信息需求变量的测量量表

信息需求是驱动社会化媒体环境下用户产生学术信息搜寻行为的重要因素之一，而信息需求是一个复杂的、模糊的、难以直接测量的潜在构念，为满足用户的信息需求，首先要准确判断和识别用户的信息需求。然而，现有研究对信息需求的描述和测量缺乏系统性和准确性，本书从信息科学研究视角出发，分析用户信息行为研究中信息需求的特征，运用定性研究和定量研究相结合的研究方法拟定测量信息需求变量的题项，并逐步对其进行筛选和检验，直至最终确定信息需求变量的有效测量量表，为精确地测量用户信息需求以及探讨不同信息需求水平调节下社会化媒体用户学术信息搜寻行为的规律提供理论依据。

(2)揭示信息需求调节下社会化媒体用户学术信息搜寻行为的影响因素及其作用效果

社会化媒体拓宽了学术信息行为研究的范围，但也加剧了用户学术信息行为的动态复杂性，增加了其研究难度。社会化媒体环境下，用户获取和搜寻学术信息等行为受到个性特征、信息源可信度、信息质量、系统质量、服务质量等多种因素的影响。对于无法直接观测的潜在变量间的因果关系，通过问卷调查收集一手数据，采用偏最小二乘法的结构化方程建模方法，创新性地结合用户个性特征、信息质量、系统质量、服务质量、信息源可信度等多个方面的因素，基于精细加工可能性模型，系统地揭示社会化媒体用户学术信息搜寻行为的前置动因及其作用效果，同时，将信息需求纳入研究模型作为调节变量，探讨信息需求对社会化媒体用户学术信息搜寻行为及其影响的调节作用与影响规律。

(3)从多个不同角度比较社会化媒体用户学术信息搜寻行为及其影响因素的差异性感知

用户个性特征不仅包括性别、年龄、身份、学科等基本特征，还包括学术研究经验、社会化媒体使用经验、性格特征等。个性特征的差异将用户划分为不同的群体，不同的用户群体在使用社会化媒体参与各种学术信息活动过程中的行为表现会有所不同。本书创新性地从用户个人的生理特征和心理特征的角度，利用独立样本t检验、方差分析等方法分析具有不同个性特征的用户在社会化媒体环境下的学术信息搜寻行为及其影响上的感知差异，从多个不同角度揭示社会化媒体用户的学术信息搜寻行为及其影响因素在均值差异上的规律，便于更好地引导用户的学术信息搜寻行为，为不同用户群体提供针对性的信息服务，满足他们的信息需求，实现社会化媒体环境下学术信息资源的优化配置和效用最大化。

【注释】

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