Which of the following is considered a reinforcing factor in behavior change?

Feedback from significant others is considered a reinforcing factor in behavior change because it provides social support and validation, which can motivate an individual to continue or alter their behavior. This type of feedback can come from family, friends, or peers, and is instrumental in reinforcing positive behavior changes. When individuals receive encouragement or compliments from those important to them, it can strengthen their commitment to the new behavior and help them feel accountable.

In contrast, community norms generally reflect the collective standards within a community but do not serve as direct reinforcement for individual behavior changes. Personal beliefs are cognitive factors that shape a person's behavior but do not provide external reinforcement. Access to information is crucial for understanding behaviors and making informed choices, yet it does not inherently offer the personal encouragement that feedback from significant others provides.