An AI-supervised remote exam went so badly that 58,000 students must retake it

AI 中文解读

墨西哥国立自治大学的入学考试翻车了，16万人远程考试，结果5.8万人成绩作废要重考。事情起因是学校首次引入了AI监考系统：考生用电脑摄像头答题，软件通过AI判断是否有作弊动作。但等成绩公布时，高分人数比例从往年的3.5%飙到16.3%，成绩分布严重失真，校方只能大面积推翻重来。说白了，AI监考这次既没真正管住作弊，反倒把正常考生也弄乱了。对普通人来说，这意味着远程考试的信誉度被打了个问号——以后线上考学、考证的门槛可能更高，或者干脆退回线下。更重要的是给所有依赖AI做关键决策的机构提了个醒：技术再先进，在公平性这个根本问题上还没到能完全信任的程度。学生多花一次备考时间，学校多烧一笔组织成本，这就是为新工具交的学费。

Earlier this summer, nearly 160,000 applicants took the entrance exam for UNAM, Mexico's largest university. For the first time, they did it completely remotely, using a "lockdown" browser and AI-powered webcam proctoring software, over several weeks from late May through early June. It was a disaster. When exam results came in, they bore little resemblance to past results, especially at the top. Between 2021 and 2025, 3.5 percent of test takers scored 100 or more on the 120-question UNAM test. This year, 16.3 percent did so.Read full article Comments