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Case study has been a productive and greatly influential approach in applied linguistics as a tool to trace learners’ development of first and second language.This thesis analyses the case study approach in terms of definition,reliability and validity,the process of doing a case study research,its strengths and limitation.
Case study has been a productive and greatly influential approach in applied linguistics as a tool to trace learners’ development of first and second language. This paper analyzes the case study approach in terms of definition, reliability and validity, the process of doing a case study research, its strengths and limitation.