Governor Donovan was greeted by large, enthusiastic crowds at all of his political
rallies. As a result, he became overconfident about his chances of reelection. In this
instance, the governor needs to be alerted to the value of:.
A) replication.
B) random sampling.
C) experimental control.
D) naturalistic observation.

In a study, people were asked to imagine simple occasions that made them happy and to remember events that made them feel proud about themselves. it was observed that the subjects developed an increasingly positive attitude. these changes are known to be healthy, leading to greater physical activity and reducing unhealthy habits. based on this excerpt, we can conclude that a positive attitude .