Qualitative and quantitative are the essential and basic research methods used in all the academic disciplines. English for Specific Purposes (ESP) is a new trend in the English studying world. Many studies have been done in ESP field. In this article, qualitative and quantitative research methods used in the ESP field will be discussed, and the conclusion was made that qualitative research method suits ESP study better
Keywords: Qualitative research; Quantitative research; Mixed research methods; ESP