Dr Gülüm Özer is a Lecturer in Psychological Medicine (Organisational Psychiatry & Psychology) at the Institute of Psychiatry, Psychology & Neuroscience, King’s College London. She specialises in organisational psychology with a focus on workplace bullying perpetration, mental health, and employee wellbeing—bridging rigorous research with real-world organisational practice.

Her work includes longitudinal, daily-diary and qualitative studies on bullying and health, a systematic review on antecedents and mechanisms of perpetration, and applied pieces that inform prevention and intervention. Her publications appear in outlets such as Aggression and Violent Behavior and the International Journal of Environmental Research and Public Health; she has also served as guest editor for a special issue on preventing and addressing negative workplace behaviours.

Her career spans senior finance and administration leadership in international companies—including roles as Head of Finance/HR/Administration at international organisations— experience that strengthens her practice-oriented teaching and research translation.

Gülüm received the Extraordinary Doctoral Award (University of Barcelona) and multiple King’s Education Award nominations (shortlisted for Student Support); recent funding includes a King’s Academy education-research grant supporting her work on authentic assessment and employability.

She is a member of IAWBH and EAWOP, among other professional bodies; holds an MBA (Oxford Brookes), an MSc in Organisational Psychology (Istanbul Bilgi University), CMA certification, and a BA in Economics (Boğaziçi University). She is fluent in Turkish and English and also lectures part-time at Istanbul Bilgi University (Module Lead: Global Trends in Organisational Psychology).

Applied Research & Collaboration

Gülüm Özer leads the Organisational Wellbeing Lab, an applied initiative that brings together UK-based HR professionals, business leaders, and founders with MSc students and alumni from King’s College London’s Organisational Psychiatry & Psychology programme. The initiative provides partner organisations with bespoke research into workplace challenges and co-developed, evidence-based wellbeing strategies.

Teaching & Supervision

At King’s, she is Module Lead for Research Methods (systematic reviews and qualitative methods) and Organisational Behaviour (case-based teaching), contributes to Managing Mental Capital, and supervises MSc projects on bullying prevention and organisational wellbeing. Dr. Gülüm Özer supervises PhD students and welcomes those who are passionate about stopping workplace bullying perpetration.

She also mentors colleagues and serves in departmental roles including Admissions Officer, Deputy Chair for the Online Assessment Board, and membership of the PhD Sub-Committee, Culture, Diversity, Equality & Inclusion team, and the Bullying & Harassment Committee.

Research Interests

Mental Health
Workplace bullying perpetration
Employee wellbeing

Publications

5.- Özer, G., & Escartín, J. (2024). Imbalance between employees and the organisational context: A catalyst for workplace bullying behaviours in both targets and perpetrators. Behavioral Sciences, 14(9), 751. https://doi.org/10.3390/bs14090751.

4.- Özer, G., Işık, İ.; Escartín, J. (2024). Is There Somebody Looking out for me? A Qualitative Analysis of Bullying Experiences of Individuals Diagnosed with Bipolar Disorder. International Journal of Environmental Research and. Public Health, 21, 137. https://doi.org/10.3390/ijerph21020137.

3.- Özer, G., & Escartín, J. (2023). The making and breaking of workplace bullying perpetration: A systematic review on the antecedents, moderators, and mediators of perpetration and suggestions for organisations. Aggression and Violent Behavior, 69. https://doi.org/10.1016/j.avb.2023.101823.

2.- Özer, G., Griep, Y.; & Escartín, J. (2023). A matter of health? A 24-week daily and weekly diary study on workplace bullying perpetrators’ psychological and physical health. International Journal of Environmental Research and. Public Health, 20, 479. https://doi.org/10.3390/ijerph20010479.

1.- Özer, G., Griep, Y., & Escartín, J. (2022). The relationship between organisational environment and perpetrators’ physical and psychological State: A three-wave of longitudinal study. International Journal of Environmental Research and. Public Health, 19, 3699 https://doi.org/10.3390/ijerph19063699.

Deborah Cummings

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