Muthanna is Professor in Developmental Psychopathology and Head of the Developmental Psychology Research Group. His major research interests are in school and sibling bullying, the long-term outcomes following prematurity, the development of Post-Traumatic Stress Disorder (PTSD) amongst children of war and refugees, Teens Taking Charge for cancer patients, and school experience, educational aspirations and scholastic achievement. Muthanna has been awarded several grants as the lead PI in different research topics. He is the Director of the Centre for Research on Communities, Identities and Difference (CResCID: https://www.kingston.ac.uk/faculties/faculty-of-arts-and-social-sciences/research/crescid-res/) and the Head of the International Centre of Children and Adolescents Psychopathology.