Burrhus Frederic Skinner studied behavior through experiments and developed a philosophy he called radical behaviorism. His writing connected laboratory methods with much broader questions about human action. Those two projects need to be read separately: a way of recording behavior is not automatically a complete account of a person.
Skinner was born in Susquehanna, Pennsylvania, in 1904. He studied at Hamilton College, then earned his doctorate at Harvard in 1931 (his curriculum vitae). He died in 1990 (National Academy of Sciences memoir).
A laboratory program
The Behavior of Organisms appeared in 1938. It distinguished respondent behavior, described in relation to an eliciting stimulus, from operant behavior, which Skinner studied through its relation to consequences. He did not present these as two names for the same process (book, chapter I).
His apparatus included a lever, a food dispenser and a system for recording responses. Choosing a clearly countable action mattered: the researcher needed to decide consistently what counted as one response. Skinner emphasized response rate, or how often a response occurred over time, rather than relying only on a general impression of the animal’s activity.
The book’s apparatus and records show how he organized that research. They do not, by themselves, settle every question about behavior outside the laboratory.
Terms that should not be collapsed
In Science and Human Behavior (1953), Skinner distinguished positive and negative reinforcement by whether something was presented or removed. “Positive” and “negative” referred to that difference, rather than to moral approval or disapproval (chapter V, pp. 72–73).
His account of punishment included both presenting an aversive event and removing a positive reinforcer. It therefore cannot be reduced to “adding a stimulus.” Nor was extinction simply another name for removing something: his discussion concerned a response no longer being followed by its previous reinforcement.
These distinctions clarify his historical vocabulary. They are not instructions for managing another person’s behavior. Explaining what a researcher meant by a term is different from recommending a practice.
Did radical behaviorism ignore feelings?
In About Behaviorism (1974), Skinner explicitly rejected that description. He distinguished his position from approaches that excluded private events because observers could not publicly agree about them (extract, section “Radical Behaviorism”).
He allowed self-observation and discussed feelings and other events within the body. He questioned how to explain them and how reliable observations of them were. In his account, including private experience did not mean treating it as a separate, nonphysical cause that ended the inquiry.
He also distinguished behaviorism as a philosophy of science from the experimental science itself. This helps explain why a laboratory finding and a philosophical claim require different kinds of argument.
[Documented as Skinner’s position] These passages establish what he said. They do not demonstrate that every part of his explanation is correct.
Language becomes a point of disagreement
Skinner published Verbal Behavior in 1957. In 1959, linguist Noam Chomsky reviewed it in the journal Language (review).
Chomsky questioned whether concepts developed in laboratory research retained their precision when extended to language. He argued for greater attention to the organism’s internal organization and challenged the explanatory scope of Skinner’s account. This was a specific dispute about language and explanation, not an objection that nature could never include mental activity.
[Disputed] The review documents a critic’s argument. Its publication does not by itself prove that every aspect of Skinner’s research was overturned.
Dates, collaborators and recognition
Skinner returned to Harvard as a professor in 1948. He became Edgar Pierce Professor of Psychology in 1958, retiring in 1974. The named chair and his return to Harvard were different appointments (Harvard record).
His publication history also includes collaborators. Schedules of Reinforcement (1957) was written with Charles B. Ferster. Later books included Contingencies of Reinforcement (1969), Beyond Freedom and Dignity (1971) and About Behaviorism (1974) (foundation bibliography).
The 1968 National Medal of Science recognized his contributions to studying behavior; the presentation ceremony took place in January 1969 (National Science Foundation). An award records recognition, not approval of every argument an author made.
How we know
What survives: Experimental descriptions, recorded data, books, a personal curriculum vitae and critical reviews.
Whose voices are missing: A count of responses cannot supply the subject’s own account of the experimental situation.
What is uncertain: Extending a laboratory framework to language or social life requires arguments beyond describing the original apparatus.
Then vs. now
Reading Skinner carefully means distinguishing a measurement, an interpretation and a proposal about how people should live. Agreeing with one does not require agreeing with the other two.