Which of the following is not one of the three types of learning highlighted in behaviorist theories?

Cognitive dissonance is the correct choice because it pertains to a psychological theory related to the discomfort experienced when holding conflicting beliefs or values, rather than a type of learning process described by behaviorist theories. Behaviorist theories primarily focus on observable behaviors and typically identify three distinct types of learning: classical conditioning, operant conditioning, and observational learning.

Classical conditioning, as proposed by Pavlov, involves learning through association, where a neutral stimulus becomes associated with a meaningful stimulus to evoke a response. Operant conditioning, introduced by Skinner, revolves around learning through consequences, where behaviors are shaped and maintained by reinforcement or punishment. Observational learning, as conceptualized by Bandura, demonstrates how individuals can learn by observing and imitating others.

Therefore, cognitive dissonance, while an important concept within psychology, does not fit within the behaviorist framework that emphasizes specific types of learning mechanisms based on direct interactions with the environment or through the observation of others.