Mixed methods research or MMR can be defined as “research designs using qualitative and quantitative data collection and analysis techniques in either parallel or sequential phases.” MMR can be stated as “a process of research when researchers integrate quantitative methods of data collection and analysis and qualitative methods of data collection and analysis to understand a research problem.” It corresponds to the “class of research where the researcher mixes or combines quantitative and qualitative research techniques, methods, approaches, concepts or language into a single study.” As it can be seen from these definitions, the most important element of mixed methods research is using both quantitative and qualitative research methods.