Answer: Actor-observer bias
Explanation:
Actor observer bias is the error or mistake effect that occurs when a person attributes others behavior as individual characteristic and behavior of self caused or impacted by external or situational factors.
According to the question,example of actor observer bias effect is described through Allison believing that her behavior of gambling is impacted through external factor i.e.-influence of her friend's bad behavior whereas Anne is indulged in gambling because of her addiction.