英语听力策略运用对工作记忆广度影响的实证研究

Application of Strategy for English Listening——A Case Study on Influence of Working Memory Span

本文通过构建结构方程模型,对英语元认知策略和认知策略对工作记忆广度生长的影响进行实证分析,研究发现:在工作记忆广度生长过程中,各听力策略因子的部署时间为是否能运用该策略的重要约束条件,在听力练习中,为扩大工作记忆广度,对听力策略的选择必须将时间约束作为首要考虑因素;有显著意义的听力策略通过直接或者间接途径对工作记忆广度的生长具有正负两面性;独立影响模型和综合模型均表明策略运用产生的直接和间接影响对工作记忆广度生长的综合效应最终体现出正面性,且作用呈现凸性,在策略作用下,工作记忆广度能得到一定程度的提升,在达到极值点后平缓地衰减,表明策略运用正向效应的有限性。

The thesis aims at making the empirical analysis about the effect of meta-cognitive strategy and cognitive strategy on the growth of working memory span,through setting up the structural equation model（ SEM）.The result shows that time deployment of each listening strategy determinant is the constraint of the strategy application. Statistically significant listening strategy possesses dual character through direct or indirect influence on working memory span. Both independent influence model and aggregative model demonstrate the positive effect of the combined strategy on working memory span. The research also reveals the limitation of the positive effect.