Final answer:
No, the statement is false. Albert Bandura was a cognitive psychologist from the beginning and he believed that behaviorism was inadequate for fully explaining behavior.
Step-by-step explanation:
No, the statement is false. Albert Bandura did not become a cognitive psychologist later in his career. He was actually a cognitive psychologist from the beginning. Bandura's theory of social learning, also known as social-cognitive theory, emphasized the role of cognitive processes in learning and behavior. Bandura believed that behaviorism was inadequate for fully explaining behavior and felt that internal mental states must also have a role in learning. He proposed that observational learning, which involves much more than imitation, is an important aspect of learning and personality development.
Hence, while he critiqued pure behaviorism for its inadequacy in explaining learning comprehensively, he developed social learning theory as an alternative rather than completely shifting to cognitive psychology.