The Theory of Planned Behavior (TPB), Self-Determination Theory (SDT), and Health-Seeking Behavior

This chapter explores the integration of the theory of planned behavior (TPB) and self-determination theory (SDT) in understanding health-seeking behavior. The chapter begins with an introduction to the concepts of TPB and SDT, highlighting their relevance to health behavior research. TPB examines cognitive factors such as attitudes, subjective norms, and perceived behavioral control, while SDT emphasizes intrinsic motivation and the fulfillment of psychological needs for autonomy, competence, and relatedness. Health-seeking behavior, the action individuals take in response to perceived health issues, is then examined within the framework of TPB and SDT, considering how cognitive processes and intrinsic motivations influence health-related decisions. The intersection of TPB and SDT is explored, recognizing the complementary aspects of both theories and their implications for understanding health behavior. Finally, implications and future directions for research and practice are discussed, emphasizing the importance of integrated experimental studies and broadening the scope of health behaviors considered. Overall, the integration of TPB and SDT offers a promising framework for unraveling the complexities of health-seeking behavior and informing more effective health interventions.