Which concept focuses on the interplay between personal influence and social support in behavior change?

The choice that focuses on the interplay between personal influence and social support in behavior change is Social Cognitive Theory. This theory, developed by Albert Bandura, emphasizes the importance of social interactions and the environment in the learning process. It suggests that personal factors (like beliefs and attitudes), behavioral factors (like skills and practices), and environmental factors (like social support systems) all interact to shape an individual's behavior.

In the context of behavior change, Social Cognitive Theory posits that individuals often look to their social environment for cues and support, relying on models within their community to guide their actions. This model showcases how observing and interacting with others can influence one's own behavior, highlighting the importance of social support mechanisms, which can facilitate or hinder behavior change.

On the other hand, Behaviorism primarily focuses on observable behaviors and the ways they can be influenced through reinforcement and punishment, lacking the emphasis on personal beliefs and social context. Cognitive Development Theory is more concerned with how children understand and process the world as they grow, which does not directly address behavior change in an adult context. Psychodynamic Theory digs into unconscious processes and past experiences, rather than a straightforward examination of current social influences and support systems in behavior change.