A Multidimensional Coding Scheme for VMT
A Multidimensional Coding Scheme for VMT
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VMT多维编码方案
DOI：
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发表时间：
2009
期刊：
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通讯作者：
J. Strijbos
中科院分区：
文献类型：
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作者：
J. Strijbos
在CSCL研究中，通过聊天进行协作主要是在二元设置中进行研究的。在VMT的大型团队中，由于相互作用更加复杂和模糊，因此更难指定编码发布的程序。本章讨论了在小组聊天通信的多维编码程序开发过程中出现的四个问题：(a)分析单元和单元碎片化，(b)响应结构的重建，(c)在不高估的情况下确定可靠性，以及(d)受不同理论方法立场启发的构建的有效性。线程，即分析单元之间的连接，对于处理单元碎片、重建响应结构和编码的可靠性是必不可少的。此外，还说明了可靠性高估的风险。讨论了CSCL对信度、效度和分析方法的影响。
In CSCL research, collaboration through chat has primarily been studied in dyadic settings. In VMT’s larger groups it becomes harder to specify procedures for coding postings because the interactions are more complicated and ambiguous. This chapter discusses four issues that emerged during the development of a multidimensional coding procedure for small-group chat communication: (a) the unit of analysis and unit fragmentation, (b) the reconstruction of the response structure, (c) determining reliability without overestimation, and (d) the validity of constructs inspired by diverse theoretical-methodological stances. Threading, i.e., connections between analysis units, proved essential to handle unit fragmentation, to reconstruct the response structure and for reliability of coding. In addition, a risk for reliability overestimation is illustrated. Implications for reliability, validity and analysis methodology in CSCL are discussed.