Social learning theory proposes that behavior is determined through continuous reciprocal interaction between cognitive, environmental, and behavioral factors. It involves three key processes: vicarious learning by observing others, processing experiences through reflective thought, and self-regulation through anticipating consequences of one's actions. Modeling is the main mechanism of vicarious learning, in which people acquire behaviors by observing influential models and the consequences of their behaviors. Self-regulation allows people to reward or punish their own behaviors based on personal standards and social comparisons. Through reciprocal determinism, both personal behaviors and environmental influences interact to shape each other over time. Social learning theory suggests immunization behaviors can change as people model favorable outcomes of immunization within their social networks.