Dr. Pepijn van Empelen is social psychologist and Senior Scientist at TNO on systematic, evidence-based intervention development (Intervention Mapping). He focuses on online and mobile assessment and behavior change interventions. His models and contextualizes complex health behaviors, using real-time data, online self-regulation intervention, mobile health games, person tailored interventions, and health communication via chat robots. The aim of his research is to understand effective combinations of behavior change techniques, derived from the decoding of online and health interventions.