... Purcell and Suter, 1980). In other words, the attainment of accurate pronunciation in a second language is a matter of substantially beyond the control of educators. However, there is research that ... of the teachers have professional qualifications as M .A. in linguistics or English teaching methodology. The rest of them are attending a postgraduate course at the same time of teaching. They ... those aspects that are relevant to the research problem at the time (Johnson 1992). A case is a unit of analysis, for example, in education research, a case is probably a learner, a teacher, a...