What term describes a relationship where two individuals mutually affect each other's behaviors?

The correct term for a relationship where two individuals mutually affect each other's behaviors is interdependence. This concept emphasizes that each person in the relationship influences and relies on the other, creating a dynamic interaction that shapes their actions, emotions, and decisions. In interdependent relationships, both parties contribute to the relationship's overall success and are impacted by each other's actions, fostering a strong sense of connectedness and collaboration.

In contrast, independence refers to a state where individuals operate separately and do not rely on one another for support or decision-making. Autonomy emphasizes self-governance and the ability to make decisions without external influence, without necessarily considering the impact on another person. Attachment typically refers to the emotional bond that forms between individuals, often focusing on the feelings of closeness and safety rather than the mutual influence on behaviors. Thus, interdependence is the most fitting term to describe relationships with mutual behavioral influence.