Phone: 828-227-3347
Email: xli@email.wcu.edu 
Office Address: 242 Killian

Research Interest: For students’ learning, analyzing why some students’ misconceptions are particularly robust to change; analysis of why some students keep making the same errors and mistakes of some simple mathematics concepts over a long time even with reasonable good teaching; effective ways for increasing pre-service teachers’ pedagogical content knowledge, and how to narrow the gap between their pedagogical content knowledge and practitioner knowledge in teacher education; statistical methods such as meta-analysis, HLM, and factor analysis