策略准备对二语口语产出和认知负荷的影响

The Effects of Strategic Planning on L2 Oral Production and Cognitive Load

本研究尝试从认知负荷视角探讨策略准备对中国英语学习者二语口语产出的影响,比较有策略准备和无准备条件下学习者的口语产出和各类认知负荷,并考察了口语产出和各类认知负荷之间的相关性,结果发现:(1)策略准备提高了学习者口语产出的准确度和整体表现;(2)策略准备促进学习者积极地投入产出任务,因此自我评价的内在认知负荷、外在认知负荷和相关认知负荷都更高;(3)除内在认知负荷外,其他类型的认知负荷与口语产出指标都显著相关。从外在认知负荷和相关认知负荷看,学习者投入量越高,产出结果越好;总认知负荷的增加不利于学习者的在线表现。策略准备对口语产出的促进作用源自这一任务条件激发了学习者更为积极的认知加工。

A comparative experiment is carried out among Chinese EFL learners to assay the effects of strategic planning on oral production and cognitive load induced by the tasks. It is found that (1) strategic planning leads to higher accuracy and better global performance;(2) strategic planning induces more active involvement in speaking and thus higher intrinsic, extraneous and germane cognitive load;and (3) extraneous and germane cognitive load positively correlates with speaking outcome, while total amount of cognitive load correlate with speaking performance negatively. Strategic planning results in more effortful cognitive processing, which contributes to better oral production.