In works like Social Foundations of Thought and Action, he viewed personality as an interaction among environment, behavior, and a person's psychological processes.  
In his early works, he argued that behavior creates environment, as well as the converse, a principle he called reciprocal determinism.  In works like Social Foundations of Thought and Action, he viewed personality as an interaction among environment, behavior, and a person's psychological processes.  In his most famous study, a woman shouting "sockeroo!" beat up a clown doll, serving as a model for children who later imitated this behavior.  FTP, name this Stanford psychologist who illustrated modeling with his Bobo Doll studies.
In his early works, he argued that behavior creates environment, as well as the converse, a principle he called reciprocal determinism.  
Albert Bandura