Chris Does Not Like It When His Infant Son, Jacob

Multiple Choice

Chris does not like it when his infant son, Jacob, cries. Chris finds that if he makes goofy faces while Jacob is crying, Jacob will stop. Which learning principle best explains why Chris is more likely to make goofy faces in the future to make Jacob stop crying?

A) Positive reinforcement
B) Classical conditioning
C) Negative reinforcement
D) Stimulus generalization