Social learning theory is a psychological theory of social behavior that explains how people acquire new behaviors, attitudes, and emotional reactions through observing and imitating others. It states that learning is a cognitive process that occurs within a social context and can occur purely through observation or direct instruction, even without physical practice or direct reinforcement. In addition to the observation of behavior, learning also occurs through the observation of rewards and punishments, a process known as vicarious reinforcement. When a particular behavior is consistently rewarded, it will most likely persist; conversely, if a particular behavior is constantly punished, it will most likely desist. The theory expands on traditional behavioral theories, in which behavior is governed solely by reinforcements, by placing emphasis on the important roles of various internal processes in the learning individual. Albert Bandura is widely recognized for developing and studying it.
History and theoretical background In the 1940s, B. F. Skinner delivered a series of lectures on verbal behavior, putting forward a more empirical approach to the subject than existed in psychology at the time. In them, he proposed the use of stimulus-response theories to describe language use and development, and that all verbal behavior was underpinned by operant conditioning. He did however mention that some forms of speech derived from words and sounds that had previously been heard (echoic response), and that reinforcement from parents allowed these 'echoic responses' to be pared down to that of understandable speech. While he denied that there was any "instinct or faculty of imitation", Skinner's behaviorist theories formed a basis for redevelopment into Social Learning Theory.
At around the same time, Clark Leonard Hull, an American psychologist, was a strong proponent of behaviorist stimulus-response theories, and headed a group at Yale University's Institute of Human Relations. Under him, Neal Miller and John Dollard aimed to come up with a reinterpretation of psychoanalytic theory in terms of stimulus-response. This led to their book, Social Learning and Imitation, published in 1941, which posited that personality consisted of learned habits. They used Hull's drive theory, where a drive is a need that stimulates a behavioral response, crucially conceiving a drive for imitation, which was positively reinforced by social interaction and widespread as a result. This was the first use of the term 'social learning', but Miller and Dollard did not consider their ideas to be separate from Hullian learning theory, only a possible refinement. Nor did they follow up on their original ideas with a sustained research program.
Julian B. Rotter, a professor at Ohio State University, published his book, Social Learning and Clinical Psychology in 1954. This was the first extended statement of a comprehensive social learning theory. Rotter moved away from the strictly behaviorist learning of the past, and considered instead the holistic interaction between the individual and the environment. Essentially he was attempting an integration of behaviorism (which generated precise predictions but was limited in its ability to explain complex human interactions) and gestalt psychology (which did a better job of capturing complexity but was much less powerful at predicting actual behavioral choices). In his theory, the social environment and individual personality created probabilities of behavior, and the reinforcement of these behaviors led to learning. He emphasized the subjective nature of the responses and effectiveness of reinforcement types. While his theory used vocabulary common to that of behaviorism, the focus on internal functioning and traits differentiated his theories, and can be seen as a precursor to more cognitive approaches to learning.
Rotter's theory is also known as expectancy-value theory due to its central explanatory constructs. Expectancy is defined as the individual's subjectively held probability that a given action will lead to a given outcome. It can range from zero to one, with one representing 100% confidence in the outcome. For example, a person may entertain a given level of belief that they can make a foul shot in basketball or that an additional hour of study will improve their grade on an examination. Reinforcement value is defined as the individual's subjective preference for a given outcome, assuming that all possible outcomes were equally available. In other words, the two variables are independent of each other. These two variables interact to generate behavior potential, or the likelihood that a given action will be performed. The nature of the interaction is not specified, though Rotter suggests that it is likely to be multiplicative. The basic predictive equation is:
Where: BP = Behavior Potential E = Expectancy RV = Reinforcement Value
Although the equation is essentially conceptual, it is possible to enter numerical values if one is conducting an experiment. Rotter's 1954 book contains the results of many such experiments demonstrating this and other principles.
Importantly, both expectancies and reinforcement values generalize. After many experiences ('learning trials', in behaviorist language) a person will develop a generalized expectancy for success in a domain. For example, a person who has played several sports develops a generalized expectancy concerning how they will do in an athletic setting. This is also termed freedom of movement. Generalized expectancies become increasingly stable as we accumulate experience, eventually taking on a trait-like consistency. Similarly, we generalize across related reinforcers, developing what Rotter termed need values. These needs (which resemble those described by Henry Murray) are another major determinant of behavior. Generalized expectancies and needs are the major personality variables in Rotter's theory. The influence of a generalized expectancy will be greatest when encountering novel, unfamiliar situations. As experience is gained, specific expectancies are developed regarding that situation. For example, a person's generalized expectancy for success in sports will have less influence on their actions in a sport with which they have long experience.
Another conceptual equation in Rotter's theory proposes that the value of a given reinforcer is a function of the expectancy that it will lead to another reinforcing outcome and the value set upon that outcome. This is important because many social reinforcers are what behaviorists term secondary reinforcers – they have no intrinsic value, but have become linked with other, primary, reinforcers. For example, the value set on obtaining a high grade on an examination is dependent on how strongly that grade is linked (in the subjective belief system of the student) with other outcomes – which might include parental praise, graduation with honors, offers of more prestigious jobs upon graduation, etc. – and the extent to which those other outcomes are themselves valued.
Rotter's social learning theory also generated many suggestions for clinical practice. Psychotherapy was largely conceptualized as expectancy modification and, to some extent, as values modification. This may be seen as an early form of cognitive-behavioral therapy.
In 1959, Noam Chomsky published his criticism of Skinner's book Verbal Behavior, an extension of Skinner's initial lectures. In his review, Chomsky stated that pure stimulus-response theories of behavior could not account for the process of language acquisition, an argument that contributed significantly to psychology's cognitive revolution. He theorized that "human beings are somehow specially designed to" understand and acquire language, ascribing a definite but unknown cognitive mechanism to it.
Within this context, Albert Bandura studied learning processes that occurred in interpersonal contexts and were not, in his view, adequately explained either by theories of operant conditioning or by existing models of social learning. Bandura began to conduct studies of the rapid acquisition of novel behaviors via social observation, the most famous of which were the Bobo doll experiments (1961–63).
In their 1963 book Social Learning and Personality Development, Bandura and Richard Walters argued that "the weaknesses of learning approaches that discount the influence of social variables are nowhere more clearly revealed than in their treatment of the acquisition of novel responses." Skinner's explanation of the acquisition of new responses relied on the process of successive approximation, which required multiple trials, reinforcement for components of behavior, and gradual change. Rotter's theory proposed that the likelihood of a behavior occurring was a function of the subjective expectancy and value of the reinforcement. According to Bandura, this model did not account for a response that had not yet been learned – though this contention does not address the likelihood that generalization from related situations would produce behaviors in new ones.
Bandura went on to write the book Social Learning Theory in 1977.
Bandura's Social Learning Theories (1977) Social Learning Theory integrated behavioral and cognitive theories of learning in order to provide a comprehensive model that could account for the wide range of learning experiences that occur in the real world. As initially outlined by Bandura and Walters in 1963, the theory was entirely behavioral in nature; the crucial element that made it innovative and increasingly influential was its emphasis upon the role of imitation. Over the years, however, Bandura shifted to a more cognitive perspective, and this led to a major revision of the theory in 1977. At this time, the key tenets of Social Learning Theory were stated as follows: Learning is not purely behavioral; rather, it is a cognitive process that takes place in a social context. Learning can occur by observing a behavior and by observing the consequences of the behavior (vicarious reinforcement). Learning involves observation, extraction of information from those observations, and making decisions about the performance of the behavior (observational learning or modeling). Thus, learning can occur without an observable change in behavior. Reinforcement plays a role in learning but is not entirely responsible for learning. The learner is not a passive recipient of information. Cognition, environment, and behavior all mutually influence each other (reciprocal determinism).
Observation and direct experience Typical stimulus-response theories rely entirely upon direct experience (of the stimulus) to inform behavior. Bandura opens up the scope of learning mechanisms by introducing observation as a possibility. He adds to this the ability of modeling – a means by which humans "represent actual outcomes symbolically". These models, cognitively mediated, allow future consequences to have as much of an impact as actual consequences would in a typical stimulus-response theory. An important factor in Social Learning Theory is the concept of reciprocal determinism. This notion states that just as an individual's behavior is influenced by the environment, the environment is also influenced by the individual's behavior. In other words, a person's behavior, environment, and personal qualities all reciprocally influence each other. For example, a child who plays violent video games will likely influence their peers to play as well, which then encourages the child to play more often.
Modeling and underlying cognitive processes Social Learning Theory draws heavily on the concept of modeling as described above. Bandura outlined three types of modeling stimuli: Live models, where a person is demonstrating the desired behavior