不同关系定义下在线交互网络特点及其与学习绩效关系——以SPOC论坛为例

The Characteristics of Online Interactive Network and Their Relatonship with Learning Performance under Different Tie Definitions:Take SPOC Forum as an Example

目前,很多研究者采用社会网络分析方法探讨在线异步讨论论坛中的人际交互。然而,现有研究大多采用直接回复或共现的关系定义人际交互,较少考虑SPOC论坛中不同关系定义对于社会网络结构和属性以及社会网络中心度与学习绩效之间关系的影响。为此,本研究以SPOC论坛为例,分别从群体和个体角度探究七种关系定义下的社会网络结构和属性,并探讨不同关系定义下社会网络中心度与学习绩效之间的关系。研究发现:不同关系定义下的社会网络结构和属性具有一定差异,其中,完全共现关系定义与其它关系定义在网络结构和属性方面差异较大;社会网络中心度与学习绩效显著正相关。

At present, most of the existing studies directly adopt the tie definitions based on direct reply or total copresence definition, seldom considering the influence of different tie definitions on the social network structures and attributes and the relationship between social network centrality and learning performance in the SPOC forum. To this end, this study takes SPOC forum as an example to explore the social network structures and attributes under seven tie definitions from the perspectives of groups and individuals, and to explore the relationship between social network centrality and learning performance under different tie definitions. The results show that there are differences in the structures and attributes of social networks under different tie definitions, among which the total copresence definition is quite different from other tie definitions in terms of network structure and attributes. The study also indicates a significant positive correlation between social network centrality and academic performance under different tie definitions.