He obtained a PhD in psychology from same institution in 2015. His specialization is in psychosocial and epidemiological aspects of performance and image-enhancing drug (PIED) use, particularly illicit anabolic steroid use. Dominic has published several peer reviewed and popular articles on various aspects of the PIED and anabolic steroid use field. He has collaborated with Anti-Doping Norway and many other academics and researchers, health professionals, and policymakers around the world.