While pregnant, Allison tried sweet potatoes for the first t…

While pregnant, Allison tried sweet potatoes for the first time.  Unfortunately, her morning sickness led her to feel nauseous shortly after trying them.  Following that one experience with sweet potatoes, now Allison gags anytime she even smells them.  Allison’s taste aversion demonstrates a special type of:

When children learn language, they first develop basic skill…

When children learn language, they first develop basic skills, like cooing and babbling, and are often rewarded for using these skills. As their skills evolve they are no longer rewarded for babbling, but instead must demonstrate more sophisticated skills like using words and complete sentences. This evolution of language skills best fits with with which of the following learning concepts?