As expressed by animal experiments before. Without knowing whether or not the reforms The effect of response will cause the animal to learn that choose to respond to stimuli that are good or satisfactory only.
The behavior demonstrated by animal experiments before. Without knowing how good or not. The response of animals to make learning selected responses to stimuli that are only good or satisfactory.
Behavior is expressed by providing an animal experiment, without knowing what works? The effect of response will make the animals learning selection response to stimuli that is good or satisfactory.