Andy H. W. Fung, PhD, RSW, also known as Hong Wang Fung, is currently a Research Assistant Professor at the School of Nursing, The Hong Kong Polytechnic University. Andy Fung received training in social work and psychology. His research focuses on trauma, dissociation, mental health, and psychosocial care. Andy Fung is a highly active scholar in the field of pathological dissociation and dissociative disorders. According to Scopus data, he is the most prolific author worldwide on dissociative disorders in the past decade (2016 to 2025), and ranks among the top 10 most published authors historically in this specialized area. He has published over 120 papers in peer-reviewed journals, including Child Abuse & Neglect, American Psychologist, European Journal of Psychotraumatology, Asian Journal of Psychiatry, and Journal of Psychiatric Research. He published the self-help book, "Be a teammate with yourself: Understanding trauma and dissociation", which has been utilized in several clinical trials. Before joining the School of Nursing, Andy Fung obtained the RGC Postdoctoral Fellowship Scheme. His trauma-informed, dissociation-specific online psychoeducation program is one of only two interventions worldwide supported by randomized controlled trials for pathological dissociation. He is dedicated to improving the understanding, assessment, prevention, and treatment of mental health problems, with a specific focus on trauma-related conditions, such as post-traumatic stress disorder (PTSD) and complex dissociative disorders. He currently serves as a memebr of the Scientific Committee of International Society for the Study of Trauma and Dissociation (ISSTD) and is also an Associate Editor of European Journal of Trauma & Dissociation.
Evidence-based early intervention for PTSD and dissociative symptoms
Andy Fung’s trauma-informed, dissociation-specific online psychoeducation program is one of only two interventions worldwide supported by randomized controlled trials for trauma-related dissociation. It is also the first and only established early intervention (psychoeducation) for Chinese people with PTSD symptoms in Hong Kong.
Assessments for trauma and dissociation
Andy Fung has led a number of psychometric studies validating trauma-related assessment tools in Hong Kong, Taiwan, and across cultures. These include, but are not limited to, the Chinese version of the PTSD Checklist for DSM-5 (PCL-5) and the Chinese version of the Dissociative Experiences Scale-Taxon (DES-T).
He also led the development and validation of the International Dissociative Identity Disorder Questionnaire (IDIDQ), which is the first and only validated self-report measure of ICD-11 DID and partial DID. The IDIDQ was co-developed with Vedat Şar (an official advisor to the DSM-5 Task Force of the American Psychiatric Association), and Colin A. Ross (the developer of the DDIS). The IDIDQ is structurally similar to the International Trauma Questionnaire (ITQ) and the International Adjustment Disorder Questionnaire (IADQ). It assesses the three factors of DID proposed in ICD-11: amnesia, dissociative identities, and switching. The IDIDQ was designed to be an easy-to-use tool that can facilitate screening and cross-cultural research.
Advocating for public health and professional awareness of trauma and dissociation since the 2012
He founded the Hong Kong Association Concerning Dissociative Disorders (HKACDD) as an online unofficial organization in 2012 and has remained active in promoting social awareness of trauma, child protection, PTSD, and dissociative disorders. He has consistently argued that trauma and dissociation should be regularly taught in mental health professional curricula and that social workers and mental health nurses can play a more important role in identifying and supporting people affected by trauma and dissociation.
Publications (selected):
Fung, H. W.*, Chau, A. K. C., Cheung, C. T. Y., Huang, C. H. O., Po, B. S. K., Ross, C. A., Olff, M., Wang, E. K. S., Wong, J. Y.-H., Lam, S. K. K.*, & Ho, G. W. K. (2025). Online trauma psychoeducation for adults with PTSD symptoms: A randomized controlled trial. Journal of Loss and Trauma. https://doi.org/10.1080/15325024.2025.2570246
Fung, H. W.*, Huang, C. H. O., Chou, P.-H., Ho, G. W. K., Makino, M., Kuga, H., Horikoshi, M., & Ito, M. (2025). Maladaptive beliefs, dissociation, and suicidal ideation in people with PTSD: Results from a national survey in Japan. Journal of Psychiatric Research. https://doi.org/10.1016/j.jpsychires.2025.06.030
Lam, S. K. K., Cheung, C. T. Y., Chien, W. T., Chiu, C.-D., van Emmerik, A. A., Ross, C. A., & Fung, H. W.* (2025). Effects of an online psychoeducational program for people with dissociative symptoms: A randomized controlled trial. Research on Social Work Practice. https://doi.org/10.1177/10497315251340902
Fung, H. W.*, Li, Y., Fong, C. K. M., Wang, S.-C., Huang, S.-Y., Reyes, M. E. S., Bengwasan, P. D., Lian, A. E. Z., Wong, M. Y. C., Low, S. R., & Lu, W.* (2026). Dissociative depression is associated with higher levels of disability than non-dissociative depression: An international multi-site study. Journal of Affective Disorders. https://doi.org/10.1016/j.jad.2026.121698
Fung, H. W.*, & Ross, C. A. (2024). Social work service needs of persons with complex dissociative disorders. European Journal of Trauma & Dissociation. https://doi.org/10.1016/j.ejtd.2024.100379
Fung, H. W.*, Ho, G. W. K., Lam, S. K. K., Chau, A. K. C., & Sin, J. (2026). A population-based cross-sectional study of trauma and dissociation in the community: Theoretical reexamination and implications for mental health nursing. Journal of Psychiatric and Mental Health Nursing. https://doi.org/10.1111/jpm.70194
Fung, H. W.*, Wang, E. K. S., & Wong, J. Y.-H.* (2026). There is no one-size-fits-all in the treatment for trauma-related disorders: Commentary on Rubenstein et al. (2024). American Psychologist. https://doi.org/10.1037/amp0001553
Full list of publications: Medical & Scientific Papers