二语损耗研究的方法设计

Research Design in Second Language Attrition

作为二语习得研究的逆向过程,二语损耗研究在国外已经有30多年的历史,并建立了许多相对完整的理论框架和成熟的研究方法设计。通过国外二语损耗研究文献中49项实证研究设计,以及分析任务设计的评估方法(包括自我评估、笔头任务、口头任务和背景问卷调查)和语言学变量的评估方法(包括词汇、流利程度、复杂度以及准确度等),可以看出我国二语损耗研究应该充分吸收国外的研究方法和设计,根据我国特殊的外语学习环境和条件大力开展在这一领域的研究。

As the reverse of the language acquisition,the study of L2 attrtion abroad has a history of over 30 years,and many theories and research design have been put forward.An overview was given of 49 empirical research design in studies of L2 attrition,with particular attention paid to the types of tasks developed（self-assessment,written tasks,oral taks and background questionnaries） and the most widely used measures of linguistic variables（lexicon,fluency,complexity and accuracy）.This paper futher suggests that L2 attrition research at home should draw upon relavant research abroad.