claim: The last windstorm in Stanley Park was in 2017.
evidence: Motivating operation -LRB- MO -RRB- is a behavioristic concept introduced by Jack Michael in 1982 .. behavioristic. behaviorism. Jack Michael. Jack Michael. It is used to explain variations in the effects in the consequences of behavior .. Most importantly , a MO affects how strongly the person is reinforced or punished by the consequences of their behavior .. For example , food deprivation is a motivating operation ; if a person is hungry , food is strongly reinforcing , but if a person is satiated , food is less reinforcing .. In 2003 Laraway suggested subdividing MOs into those that increase the reinforcing or punishing effects of a stimulus , which are termed establishing operations , and MOs that decrease the reinforcing or punishing effects of a stimulus , which are termed abolishing operations .