ABSTRACT
The realist approach aims to evaluate the process of complex interventions and educational programs that are required in primary care. This is one research method focusing on the clarification of "how and why it works", which has been unclear thus far, and to make it possible to reflect on interventions and processes based on reality. In the realist approach, with realism as a paradigm, researchers collect quantitative and qualitative data, and create an integrated series of context, mechanism and outcome based on the concept of constructive alignment. In this report, the authors introduce an outline of the realist approach using an inter-professional shadowing program evaluation conducted for medical students at a community hospital as an example. It is the authors' goal that scientific evaluation applying realist principles be employed in the field of primary care.