Which term is used to describe automatic responses to stimuli, not learned through reinforcement?

• A. Respondent behavior
• B. Operant conditioning
• C. Classical conditioning
• D. Observational learning

Answer: (A)

Automatic, reflex-like responses to stimuli that occur without reinforcement are described as respondent behavior. These are involuntary and elicited by specific stimuli, not shaped by rewards or punishments. For example, salivation to food or a pupil constricting in bright light are respondent responses. This differs from operant conditioning, where behavior is voluntary and guided by consequences; classical conditioning involves forming associations that produce a learned response, and observational learning is about acquiring behavior by watching others. So the term for automatic responses not learned through reinforcement is respondent behavior.