Injunctive Norm
Weak (positively worded) : „„Please leave petrified wood in the park”
Strong (negatively worded) : „„Please don‟t remove the petrified wood from the park‟‟
Descriptive Norm
Weak : “The vast majority of past visitors have left the petrified wood in the park, preserving the natural state of the Petrified Forest”
Strong : „„Many past visitors have removed the petrified wood from the park, changing the state of the Petrified Forest‟‟