【摘要】 第二语言研究方法可以分成两大类 :定性方法和定量方法。某项研究是否具有科学性 ,并非看该研究用的是定性方法还是定量方法 ,而应该看其内部效度和外部效度如何。本文分析和归纳了影响内部效度和外部效度的各种因素 ,并在此基础上提出了一些提高研究效度的方法和建议。更多还原

【Abstract】 The approaches to second language research are often dichotomized into quantitative and qualitative paradigms. Different researchers may favor different approaches. Although there is a distinction between the two paradigms, the most important thing is what ensures the validity of researches. In this paper, the factors influencing the validity of researches are analyzed in terms of internal and external validity, and suggestions for promoting research validity are made.更多还原