Jujia Li is a Ph.D. student in Educational Research at the University of Alabama, expected to graduate in 2026. He holds a Master of Education in Education Administration from Nanyang Technological University (2017) and a Master of Science in Gemology from the China University of Geology (2008). Her current research focuses on leveraging process data, including response time, and eye-tracking data to enhance psychometric assessment and understanding of examinee behavior within an Item Response Theory (IRT) and Cognitive Diagnose Modeling (CDM) framework. He is particularly interested in evaluating spatial reasoning performance and modeling the conditions that influence response time and performance in spatial tasks. As a Research Assistant in the IES Spatial Assessment Program (2021-present), he designed and validated assessments for spatial reasoning, applying Bayesian methods and machine learning techniques to analyze multimodal data. He also worked as a teaching assistant for biostatistics courses. HE has presented multiple research at AERA and NCME conferences. He is a member of the National Council on Measurement in Education (NCME).