Question

Colin was spanked on several occasions for spilling his milk at a restaurant. these experiences made him fearful of the restaurant. in this case, spanking was a(n) ________ for colin's fear. negative reinforcer conditioned stimulus secondary reinforcer unconditioned stimulus

Answer 1

I think the correct answer would be the last option. In this case, spanking was an unconditioned stimulus for Colin's fear. These are stimuli that are natural, automatic  and are unconditional that would trigger responses. An example would be when you smell your favorite food, you suddenly feel hunger.