Reciprocal determinism
Also known as: triadic reciprocal causation, triadic reciprocality
Reciprocal determinism is Albert Bandura's principle that behavior, personal factors (thoughts, beliefs), and the environment all influence one another continuously — people shape their situations even as their situations shape them.
Reciprocal determinism is the centerpiece of Albert Bandura's social cognitive theory of personality. It holds that three classes of influence — behavior, personal factors (cognition, beliefs, expectations, emotions), and the environment — interact bidirectionally, each shaping and being shaped by the other two. Rather than a one-way street where circumstances mold a passive person, causation runs in every direction at once.
A concrete example: a student who believes she is good at math (personal factor) volunteers to join a competitive math team (behavior). The team places her among motivated peers and challenging problems (environment), which sharpens her skills and reinforces her confidence — feeding back into more ambitious behavior. The loop can just as easily run negatively: a child who expects rejection acts guarded, which elicits cooler responses from others, confirming the expectation.
The concept marked a middle path in a long theoretical argument. Strict behaviorism treated the environment as the driver of behavior, while trait and psychodynamic theories located causes inside the person. Bandura's insight was that people select, interpret, and even create their environments — through choices, self-efficacy beliefs, and observational learning — making personality an ongoing transaction rather than a fixed product.
Reciprocal determinism is a staple of personality-theory questions on the AP Psychology exam and the MCAT's psychological, social, and biological foundations section. Test questions typically describe a feedback loop among a person's beliefs, actions, and situation and ask you to name the concept — or to attribute it correctly to Bandura and social cognitive theory.
Key takeaways
- Reciprocal determinism comes from Albert Bandura's social cognitive theory.
- Behavior, personal/cognitive factors, and the environment all influence one another bidirectionally.
- People actively select and shape their environments — they aren't just shaped by them.
- The idea bridges behaviorism's environmental focus and trait theories' internal focus.
- AP Psychology and MCAT questions present a three-way feedback loop and ask you to identify the concept and its author.