What marks a behavior as rewardable and is learned via classical conditioning?

• A. Discriminative Stimulus
• B. Primary Reinforcer
• C. Clicker/Yes Marker
• D. Unconditioned Stimulus

Answer: (C)

The main idea is conditioned reinforcement. A marker like a clicker or the word “yes” starts out neutral but becomes rewarding through pairing with a primary reinforcer (such as food). When the dog hears the click or says “yes” right after performing the desired behavior, it learns that this signal predicts a reward. Over time, the marker itself strengthens the behavior because it consistently signals that a reward is coming. This is classic conditioning in action: the marker becomes a conditioned reinforcer.

Discriminative stimuli signal that reinforcement is available if the right behavior occurs, but the marker’s unique role is to indicate that a specific moment of behavior has been rewarded. The primary reinforcer is the actual reward, not the signaling cue. The unconditioned stimulus is something that naturally elicits a response without learning (like food itself) and is not the signaling device.