Rate My Professor Lonneke Lenferink

Lenferink's research centers on the definition, assessment, prediction, and treatment of prolonged grief disorder, especially after traumatic losses including violent deaths, long-term disappearances, traffic accidents, disasters such as the MH17 plane crash, and bereavement during the COVID-19 pandemic. She has developed and validated tools like the Traumatic Grief Inventory-Self Report Plus (TGI-SR+), now available in fifteen languages for use in research and clinical practice. Utilizing ecological momentary assessment, she examines grief fluctuations in daily life and leads randomized controlled trials of online cognitive behavioral therapies for prolonged grief in adults and children. Notable publications include Prolonged grief disorder following the Coronavirus (COVID-19) pandemic (2020, 420 citations), Valid measurement of DSM-5 persistent complex bereavement disorder and DSM-5-TR and ICD-11 prolonged grief disorder: The Traumatic Grief Inventory-Self Report Plus (TGI-SR+) (2022, 224 citations), Trajectories of grief, depression, and posttraumatic stress in disaster-bereaved people (2020, 164 citations), and CBT for prolonged grief in children and adolescents: A randomized clinical trial (2021, 143 citations). She has obtained over three million euros in funding as principal investigator, including NWO Veni (2022), XS (2024), VIDI (2025), and the KNAW Early Career Award (2024). Ranked third worldwide in productivity on prolonged grief disorder research, Lenferink supervises PhD candidates, teaches psychology courses on needs assessment, group dynamics, and research methods, and holds roles on editorial boards and committees such as De Jonge Akademie (since 2026).