但是，她并没有放弃她的数学老师是卑鄙的信念，而是将这位好老师视为规则的例外或只是过得好而拒绝。 信念的毅力经常与确认偏差混为一谈，但事实并非如此。 确认偏见是人们寻找并回想支持其先入之见的信息的偏见。 相比之下，信念的坚持不涉及使用信息来确认信念，而是拒绝可能反驳信息的信息。自我印象涉及对自我的信念。 这些可能包括一切，从对外观和身体形象的信念到个人的性格和社交技能，再到智力和能力。 例如，一个人可能很苗条，很吸引人，但尽管有充分的证据表明，他们却认为自己超重且丑陋。
However, she did not give up her math teacher’s despicable belief, but rejected the good teacher as an exception to the rule or just passed it. The perseverance of beliefs is often confused with confirmation bias, but this is not the case. Confirmation of prejudice is a prejudice that people look for and recall information that supports their preconceptions. In contrast, the insistence of belief does not involve the use of information to confirm beliefs, but rather to reject information that may refute information. Self-impression involves a belief in the self. These may include everything from beliefs about appearance and body image to personal character and social skills to intelligence and abilities. For example, a person may be slim and attractive, but despite the evidence, they think they are overweight and ugly.