As a research method, focus groups have methodological advantages for understanding the views and behavior of group members or for understanding the social system as a whole, since it covers the interaction between people, groups, and the interpersonal environment quite well that widely recognized in the social sciences. These advantages are introduced in the context of mixed-methods, including conducting a survey together with focus groups as a pretest questionnaire in a comparative perspective in cross-national and cross-culture research. Focus groups provide to reach construct equivalence and elaborate an appropriate context-oriented language for questionnaire questions. Using the focus groups in this way can be an effective approach to ...