Assoc.Prof. Dr. Kasetchai Laeheem is an academic at the Department of Society, Culture, and Human Development, Faculty of Liberal Arts, Prince of Songkla University, Thailand. He holds a Ph.D. in Research Methodology from Prince of Songkla University, an M.Ed. in Educational Measurement and Research, and a B.A. in Islamic Studies from the same institution. Before joining Prince of Songkla University in 2010, he served at the Faculty of Liberal Arts and Social Sciences, Yala Islamic University (now Fatoni University) from 2001 to 2009. His expertise is in research methodology, and his scholarship spans social development, youth behavior, religion, education, and community issues in Southern Thailand. He has published extensively in national and international journals, including Scopus- and Web of Science-indexed journals, and is also the author of academic books on bullying behavior, Muslim youth, and quantitative data analysis using R.