Supervisors rate the students performance and run the practice again.

监考人员对学生的表现进行评分，并再次进行练习。

It's a cognitive bias where people overestimate their own abilities and qualities with one study revealing 87% of students at a university surveyed rated their academic performance above the median.

这是一种认知偏见，人们会高估自己的能力和才能。一项研究显示，一所大学里受访的学生中，有87%会认为自己的学习成绩高于中等水平。

They like athletes who project' exciting or controversial personas, and they often rate performances in terms of dramatic expression leading to dramatic results.

他们往往根据戏剧化的表现是否导致戏剧化的结果来评价比赛。

When software engineers at two companies were asked to rate their performance, 32% of the engineers at one company and 42% at the other put themselves in the top 5%.

两个公司的软件工程师被要求进行自我评定，两家公司分别有32%和42%的工程师把自己排在前5%。