Purpose: The research that combines qualitative and quantitative methods are recently received attention in nursing academia and the number of research on mixed method is increased. The purpose of the study was to understand and discuss the application of mixed method research (MMR). Methods: This study provided the concept, research design, justification, and systematic issues of MMR through the literature review and researcher’s analytical thinking. Results: MMR was generally accepted in the literature as a new and comprehensive methodology. MMR was developed from the philosophical foundation on pragmatism. The designs of MMR and notation, mixing strategies, strategies for sampling and data analysis, and validity of MMR were examined. These were continued to be the issues including epistemology and pragmatic stances of MMR, primary point of interface for mixing, the level of interaction between different method (qualitative and quantitative), and more proper langue than ‘mixed’ etc. of MMR. Conclusion: In spite of those issues, MMR is solidified it’s position as multi-strategy research in the aspect of expansion of qualitative and quantitative methods with triangulation. I recommended that the researcher should apply the MMR after considering of epistemological assumptions and possibility evaluation of the synergy effects to his or her research for the merits of extensive results of MMR.

서 론
    1. 연구의 필요성
본 론
    1. 혼합방법연구의 개념
    2. 혼합방법연구의 적용
    3. 혼합방법연구의 질 확보
    4. 혼합방법연구의 쟁점
결 론 및 제 언
REFERENCES

• 손행미(울산대학교 간호학과) | Son, Haeng-Mi (Department of Nursing, University of Ulsan, Ulsan, Korea) Corresponding author