• Edward Barroga, Glafera Janet Matanguihan, Atsuko Furuta, Makiko Arima, Shizuma Tsuchiya, Chikako Kawahara, Yusuke Takamiya, and Miki Izumi.
• Department of Medical Education, Showa University School of Medicine, Tokyo, Japan. barrogas@med.showa-u.ac.jp.
• J. Korean Med. Sci. 2023 Sep 18; 38 (37): e291e291.

AbstractComprehensive knowledge of quantitative and qualitative research systematizes scholarly research and enhances the quality of research output. Scientific researchers must be familiar with them and skilled to conduct their investigation within the frames of their chosen research type. When conducting quantitative research, scientific researchers should describe an existing theory, generate a hypothesis from the theory, test their hypothesis in novel research, and re-evaluate the theory. Thereafter, they should take a deductive approach in writing the testing of the established theory based on experiments. When conducting qualitative research, scientific researchers raise a question, answer the question by performing a novel study, and propose a new theory to clarify and interpret the obtained results. After which, they should take an inductive approach to writing the formulation of concepts based on collected data. When scientific researchers combine the whole spectrum of inductive and deductive research approaches using both quantitative and qualitative research methodologies, they apply mixed-method research. Familiarity and proficiency with these research aspects facilitate the construction of novel hypotheses, development of theories, or refinement of concepts.© 2023 The Korean Academy of Medical Sciences.

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