Dr Luo obtained his doctorate degree of philosophy in Mathematical Psychology from Murdoch University in 1995. He had been serving the HKEAA for almost 15 years as Director – Assessment Technology and Research (D-ATR). Prior to his service at the HKEAA, Dr Luo had worked in various universities in the mainland of The People’s Republic of China, Singapore and Australia as professor and adjunct professor. His research interests include the development of various psychometric models and parameter estimation algorithms for achievement and attitude measures. His publications like the development of computer programmes for test data analysis and processing are globally recognized and used by numerous major examination organisations and academic researchers worldwide.

Dr. Chang Rui received her PhD degree on Educational Statistics and Measurement from South China Normal University, China. She was a Manager in the Division of Assessment Technologies and Research of The Hong Kong Examinations and Assessment Authority before she joined Assessment International in April 2020. Dr. Chang’s expertise is on the examination data analysis with the Item Response Theory (IRT). Dr. Chang has extensive knowledge and practical experience in dealing with data of high-stakes examinations and assessment. Her duties in Assessment International include construction of examination data archive and analysis system, analysis of examinations and assessment data, generation of the relevant reports, and communication with relevant stakeholders of the education sector in Hong Kong, Greater China and beyond.