The results are as following: (1) There is subject difference between math and Chinese in the components of task value.
研究结果表明：（1）任务价值各要素在数学和语文上存在学科差异。
When the task value demand is higher, the functions of discussion are more significantly related to decision performance.
任务评价要求高的时候，群体讨论的功能实现与决策绩效的关系更为显著。
When the task value demand is higher, the functions of discussion are more significantly related to decision performance.
任务评价要求高的时候，群体讨论的功能实现与决策绩效的关系更为显著。
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