After graduating from Yonsei University with a BA in English Literature and Language, a personal experience of bereavement led me to pursue further education in Psychology. While participating in research projects and completing my master’s degree in Counseling Psychology at Catholic University of Korea, I developed a deeper interest in the quantitative methods used in social science. This led me to study Statistics and Data Science at Korea National Open University during the pandemic. My primary research interest lies in measurement invariance within the context of intensive longitudinal data. I hope my work will support both methodological and substantive researchers in enhancing the rigor of scientific inquiry in the field of developmental science.