In their research Psychologist, Zakary L. Tormala and Richard E. Petty write about the effects of resisting persuasion and our attitude certainty meaning a person’s judgment about his or her attitude. They concluded that when people resisted persuasion, they can become more certain of their initial attitude certainty. Several of the experiments demonstrated that when participants resisted persuasion, attitude certainty increased, but only when the attack was strong. When attacks were weak their certainty was unchanged or stayed the same. Fifty-six undergraduates from Ohio State University participated in the experiment for their introductory psychology course. Four experiments were done and in each of four experiments, they presented participants
