经济与社会科学2013pike.psu.edu
学生的祖母在考试前去世的可能性要高得多
A student's grandmother is far more likely to die just before an exam
入门 · 约 30 分钟读完前置知识:基础统计学、假设检验
导读
这篇论文用统计方法研究一个广为流传的校园现象:学生在考试前祖父母去世的概率显著高于平时。论文分析了这一'考试前祖母死亡效应'的数据,并讨论了其中可能混杂的谎报因素与真实统计效应。
HN 关注点:这是 HN 上常见的幽默话题——学生总在考试前以祖母去世为由请假,老师们对哪些是真、哪些是借口争论不休,而论文用严肃统计方法研究这个'民间传说'引发热议。
HN 评论精选
这几条评论里:支持 1 质疑 1 补充 1 亲历 1
质疑以反讽口吻指出有学生多次'失去祖母',暗示谎报现象普遍
这确实是一个奇怪且令人担忧的现象。我实际上知道有学生在本科期间'失去'了三位或更多祖母的案例。这导致该学生的祖母数量变成了负数。其背后的机制非常神秘,当然值得进一步研究。
btilly查看英文原文
This is indeed a strange and worrying phenomena. I am in fact aware of cases where a student has managed to lose 3 or more grandmothers while pursuing an undergraduate degree. This leaves the student with a negative number of grandmothers. The underlying mechanisms allowing this is highly mysterious and is certainly deserving of further research.
亲历一线教师经验:多数是借口但少数是真的,建议要求讣告证明或允许丢弃最低成绩
是的,每个老师都遇到过这种情况。很多老师已经变得麻木,会默认每个提出此事的学生都是骗子。但问题是,虽然大多数案例是为了逃避考试或作业而编造的,仍有少数是真的。这些学生除了失去亲人,还会因被无端指责撒谎而更加痛苦。因此我教书时会表示同情,然后说由于过去有人滥用,只有提供报纸或殡仪馆发布的讣告才能延期。也有老师采用允许丢弃若干次最低成绩的方法,但学生往往会先丢掉早期考试,之后又以祖父母去世为由要求额外机会。
droithomme查看英文原文
Yes, every teacher has experienced this. A lot of teachers have become jaded and will assume every student who brings this up is a liar and a cheat. The problem though is that although the majority of the cases are made up to get out of exams or assignments, a small number aren't. These students, in addition to losing their beloved relative then can become very distraught to find themselves unexpectedly saddled with a false accusation of being a liar. Because of this, when I taught, I would nod and sympathize, then say that because there had been some abuse of this in the past, they could have an extension or such only if they provided an actual published obituary from a newspaper or funeral home. Some other teachers use another method, of having a certain number of exams or assignments that can be dropped without penalty. Of course what often happens in those cases is students drop an early exam, and then later claim injustice at not getting an extra one for the deceased grandparent.
补充指出报告偏差:只有考试缺勤有后果时学生才会报告亲属去世
当然,如果缺课没有后果,学生就没有理由上报亲属去世的消息。所以死亡很可能只在考试期间才被上报。
kenthorvath查看英文原文
Of course, students have no reason to report deaths of relatives when there are no consequences to missing class. So, deaths most likely only get reported during exams.
支持借这篇论文反思科学解读的主观性
这是我在 HN 上见过的最佳提交之一。如今人们常把'科学'当作完全客观的事业,但实际上呈现给公众的往往是对客观观察的解读,而这是非常主观的事情。
lightyrs查看英文原文
This is one of the best submissions I've seen on hn. So often these days, people are treating 'SCIENCE' as a completely objective enterprise when it is usually the interpretation of objective observations that is fed to the public, which is a very subjective matter.
历次讨论
- 2013Hacker News 讨论帖157 分 · 54 评
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