MMR can be defined as the combination of quantitative and qualitative methods for a clear understanding of research objectives than either approach alone. It is because MMR balances the weaknesses of quantitative and qualitative research and transforms them into strength. By using all types of data collection tools, researchers can get more comprehensive evidence for a research problem. In respect of limitations, a single researcher may have some difficulties on conducting both qualitative and quantitative research when s/ he intends to use two or more ways all at once. Thus, a research team may be needed to get the best results. Furthermore, learning about multiple methods and approaches and understanding how to mix them aptly should be regarded as a must. Conducting MMR can also be more expensive, time consuming and may require formulating how to mix paradigm, analyzing quantitative data or interpreting the paradoxical results by research methodologist.