任务复杂度对二语口语产出影响的元分析  

The Effects of Task Complexity on L2 Oral Production:A Meta-Analysis

作　　者：徐锦芬[1] 冯晓丽 XU Jinfen;FENG Xiaoli(School of Foreign Languages,Huazhong University of Science and Technology,Wuhan 430074,P.R.China)

机构地区：[1]华中科技大学外国语学院,湖北省武汉市430074

出　　处：《现代外语》2025年第1期90-102,共13页Modern Foreign Languages

基　　金：国家社科基金重点项目“教育生态视角下我国大学生英语学习多元互动研究”(20AYY015)的阶段性成果。

摘　　要：本研究采用元分析方法对任务复杂度影响二语口语产出的相关实证研究进行整合分析,检验任务复杂度的整体效应及其调节变量。结果显示:1)在二语口语任务复杂度研究中,资源指向型任务复杂度比资源消耗型受到的关注更多;2)二语口语产出测量指标多样,但主要关注语言形式;3)任务复杂度整体能够中等程度提升口语准确度,但对词汇复杂度、句法复杂度和流利度的效应不显著;4)资源指向型任务复杂度能够较大程度显著提升口语准确度,资源消耗型任务复杂度中等程度显著降低词汇复杂度;5)学习者任务参与条件、二语语种及其水平是影响任务复杂度效应的潜在调节因素。本研究揭示了不同任务复杂度设计在二语口语产出中的效应差异,强调根据学习者的具体语言能力和需求来调整任务复杂度的必要性,为教师精准采取合理的教学任务设计、提升英语口语产出提供了启示。This study employs a meta-analysis approach to synthesize empirical research on the impact of task complexity on L2 oral production, aiming to examine the overall effect of task complexity and its moderating variables. The findings indicate that:(1) resource-directing dimensions of task complexity have garnered greater attention than resource-dispersing dimensions in research on L2 oral task complexity;(2) there is an assortment of measurements for L2 oral production, with a majority focusing on linguistic form;(3) task complexity overall moderately enhances the accuracy of oral production, yet its effects on lexical complexity, syntactic complexity, and fluency are not significant;(4) resource-directing task complexity significantly improves oral accuracy to a relatively high extent, while resource-dispersing task complexity moderately reduces lexical complexity;and(5) learners' participation conditions in oral tasks, as well as the type and proficiency level of their second language, are potential moderating factors influencing the effects of task complexity. This study reveals the differential effects of various task complexity designs on L2 oral performance, highlighting the importance of tailoring task complexity to learners' specific linguistic proficiency and requirements. It provides insights for educators to precisely implement pedagogical task designs to enhance learners' English oral production.

关 键 词：任务复杂度 二语口语产出 复杂度 流利度 准确度 

分 类 号：H319[语言文字—英语]