Martin S. Hagger is Professor of Health Psychology at the University of California, Merced, USA, and Finland Distinguished Professor in the Faculty of Sport and Health Sciences at the University of Jyväskylä, Finland. Linda D. Cameron is Professor of Health Psychology and the Department Chair of Psychological Sciences at the University of California, Merced, USA. Kyra Hamilton is Associate Professor in the School of Applied Psychology at Griffith University, Australia, and adjunct Associate Professor in the School of Psychology at Curtin University, Australia. Nelli Hankonen is Assistant Professor of Social Psychology in the Faculty of Social Sciences at the University of Helsinki, Finland. Taru Lintunen is Professor of Sport and Exercise Psychology in the Faculty of Sport and Health Sciences at the University of Jyväskylä, Finland.

'This is an outstanding compendium of current approaches to changing behaviour written by world leaders in social psychology. It includes full descriptions of 17 theoretical approaches, considers practical challenges, and gives detailed guidance on how to use theories in intervention development. Both researchers and practitioners will find this useful.' Marie Johnston, Professor Emeritus of Health Psychology, University of Aberdeen, UK, and registered Health and Clinical Psychologist

• List of figures; List of tables; List of sidebars; List of contributors; 1. Changing behavior: a theory and evidence based approach; Part I. Theory and behavior change: 2. Changing behavior using the theory of planned behavior; 3. Changing behavior using social cognitive theory; 4. Changing behavior using the health belief model and protection motivation theory; 5. Changing behavior using the common sense model of self-regulation; 6. Changing behavior using the model of action phases; 7. Changing behavior using the health action process approach; 8. Changing behavior using self-determination theory; 9. Changing behavior using control theory; 10. Changing behavior using the transtheoretical model; 11. Changing behavior using integrative self-control theory; 12. Changing behavior using the reflective-impulsive; 13. Changing behavior using habit theory; 14. Changing behavior by changing environments; 15. Changing behavior using integrated theories; 16. Changing behavior using social identity processes; 17. Changing behavior using ecological models; 18. Changing behavior using theories at the interpersonal, organizational, community and societal levels; Part II. Using theory to change behavior: 19. Design, implementation, and evaluation of behavior change interventions: A ten-task guide; 20. Moving from theoretical principles to intervention strategies: An experimental medicine approach; 21. Developing behavior change interventions; 22. Evaluation of behavior change interventions; 23. Implementation science and translation in behavior change; 24. Engagement of stakeholders in the design, evaluation, and implementation of complex interventions; 25. Maximizing user engagement with behavior change interventions; 26. Cost effectiveness evaluations of behavior change interventions; 27. Addressing underserved populations and disparities in behavior change; 28. Behavior change in community contexts; 29. Changing behavior in the digital age; 30. Critical and qualitative approaches to behavior change; Part III. Using theory to change behaviour: 31. Attitudes and persuasive communication; 32. Self-efficacy interventions; 33. Imagery, visualization and mental simulation; 34. Affect-based interventions; 35. Autonomy-supportive interventions; 36. Incentive-based interventions; 37. Monitoring interventions; 38. Goal setting interventions; 39. Planning and implementation intention interventions; 40. Self-control interventions; 41. Habit interventions; 42. Economic and behavioral economic approaches to behavior change; 43. Dyadic behavior change interventions; 44. Social identity interventions; 45. Motivational interviewing interventions; 46. The science of behavior change: The road ahead.