中介效应分析在二语习得研究中的应用及方法评述

A Review of the Significance and Methods of Mediation Effect Analysis in Second Language Acquisition Researches

近十年来,中介效应分析作为量化研究中的一种统计方法,引起学界众多研究者的关注。相较于以往的统计方法,中介变量的引入能够解释变量之间的潜在关系及作用机制。本文回顾了中介效应相关概念,介绍常见模型、基本操作步骤并总结了中介效应分析在二语习得实证研究中的运用。本文以问卷调查和教学实验两种常见的研究范式为例,演示汉语二语习得领域中介效应的研究思路与操作,以期推动国际中文教育领域对汉语二语习得过程与教学促学机制相关研究的关注,并提供新的方法论视角。

As a statistical method in quantitative research,mediation effect analysis has attracted the attention of many researchers in the academics in the past ten years.Compared with previous statistical methods,the mediating variables can explain the underlying relationship and effect mechanism between variables.The paper reviews the related concepts of mediation effect,and introduces the common model classification and basic operation steps.Then,the application of the mediation effect test in the field of second language acquisition are summarized.Furthermore,two common research paradigms in the field of Chinese as a second language,namely questionnaire surveys and teaching experiments are used as examples to demonstrate the research ideas and operations of the mediation effect.It provides a new methodological perspective and promotes researches on the process of Chinese second language acquisition and teaching promotion mechanism in the studies of international Chinese education.