Abstract
Video is widely used as a data collection method in observational research. However, the process of analyzing video data can be overwhelming. In this study, we discuss several issues that we found during analyzing video data, such as the boundary of behaviors, priority for intertwined behaviors, and misunderstanding of behavior codes among analysts. We propose an iterative approach with reliability analysis to refine the coding scheme and solve these problems. This process involves two analyses, alternating between independent coding and coding in pairs.