Martin Hagger

Martin Hagger is a Distinguished Professor in the Department of Psychological Sciences at the University of California Merced. His research focuses on behavioral psychology, health promotion, and theoretical frameworks guiding behavior change. He specializes in applying models like the Theory of Planned Behavior (TPB), Self-Determination Theory (SDT), and Protection Motivation Theory to understand and influence health-related decisions.

Key areas of interest include physical activity promotion, substance use prevention (e.g., doping, vaping), chronic pain management, and pandemic behavior (e.g., vaccination intentions). He frequently employs meta-analytic approaches to synthesize findings across studies and evaluates intervention effectiveness through randomized controlled trials.

Recent work highlights innovative methods such as photo-elicitation for health perception studies and digital interventions targeting specific populations (e.g., post-hypertensive women). His research bridges individual psychological factors with socio-structural influences, emphasizing real-world applicability in public health policy.