Primary reinforcer is defined as which of the following?

Primary reinforcer is defined as which of the following?

• A. Unconditional reinforcer that the animal intrinsically likes or needs (food, water, sex)
• B. A conditioned response to a stimulus
• C. A consequence that reduces behavior
• D. A reinforcer only delivered after long delay

Answer: (A)

A primary reinforcer is any reinforcer that is unlearned and inherently rewarding because it satisfies basic biological needs. It’s reinforcing on its own, without any training, so items like food, water, or sleep are classic examples. This differs from secondary (or conditioned) reinforcers, which only become reinforcing because they’ve been associated with primary reinforcers (think praise or tokens that gain value through learning). The option describing a consequence that reduces behavior points to punishment, not reinforcement, and the one about a reinforcer delivered after a long delay doesn’t define it—the defining feature is the inherent, biological value, not timing or learned associations.

A primary reinforcer is any reinforcer that is unlearned and inherently rewarding because it satisfies basic biological needs. It’s reinforcing on its own, without any training, so items like food, water, or sleep are classic examples. This differs from secondary (or conditioned) reinforcers, which only become reinforcing because they’ve been associated with primary reinforcers (think praise or tokens that gain value through learning). The option describing a consequence that reduces behavior points to punishment, not reinforcement, and the one about a reinforcer delivered after a long delay doesn’t define it—the defining feature is the inherent, biological value, not timing or learned associations.