When talking about behavior and controlling it there has to be two kinds of variables: independent and dependent. The depended variable is something that is consistant like kind of animal and the independent variable is the kind of stimulus. The kind of relationship between these two factors is a cause and effect relationship. B.F. Skinner used classical conditioning to control the response of dogs when they heard a bell to salivate in response to the presentation of food. After enough repeated trials, the dogs salivated by hearing the bell alone without the food being present.
This video shows Skinners ideals and is actually really funny because I work at Hooter's and I'd do anything for a 50 dollar tip as well.