The reason why Reebok believes that Sidney Crosby wearing their ice-skates will increase sales is due to Classical Conditioning.
Classical conditioning leads to people associating a certain stimulus with a certain effect.
Classical conditioning would therefore lead to people associating Reebok to Sidney Crosby and so they will buy more skates because of this association.
Find out more on classical conditioning at https://brainly.com/question/17583598
#SPJ1