According to Bandura, the idea that the environment, behaviors, and cognitive factors all play a mutual role in the development of personality is referred to as : reciprocal determinism.
He thought that a person's personality is conditioned through a set of consequences. For example, people that lived within tribes on rainforest are far more paranoid than those who live in the city because they're conditioned to face constant threats from dangerous animals and other tribes, which cause them to became paranoid