TA的每日心情 | 慵懒
2020-7-26 05:11 |
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刚才看到篇文章（作者是哥伦比亚大学统计系教授），对Ron Unz文章引用的数字有些争议，最主要的是怎么来数有多少是犹太人。Ron Unz的主要方法是用犹太人的姓氏，这篇文章认为不可靠。其中我觉得最重要的一段。
Unz also looks at very high-performing math students to document his claim of “the strange collapse of Jewish academic achievement.” If you look at the numbers carefully, though, it’s not such a collapse nor is it so strange. I learned this via some numbers compiled by Janet Mertz, a professor of oncology at the University of Wisconsin – Madison who has published a relevant article in the Notices of the American Mathematical Society on mathematics performance by gender and ethnicity on national and international mathematics competitions. She also happens to be the mother of one of the Jewish students with an Anglicized surname whom Unz failed to count among the Jewish 21st century US IMO team members and Putnam Fellows.
Unz: “The U.S. Math Olympiad began in 1974, and all the names of the top scoring students are easily available on the Internet. During the 1970s, well over 40 percent of the total were Jewish, and during the 1980s and 1990s, the fraction averaged about one-third. However, during the thirteen years since 2000, just two names out of 78 or 2.5 percent appear to be Jewish.” [full list is here]
Mertz: “For the 2000s (i.e., 2000-2009) row of his table, Unz claims there were only 3% Jews. Based upon my direct personal knowledge of these students, I have determined that there actually were at most 35% non-Jewish whites, 49% Asians, and at least 16% Jews, with 1/2 Jews being counted 50-50 between Jewish and non-Jewish white and 1/4 Jews being counted as 25-75 between Jewish and non-Jewish white. The 44% Jews Unz claims for the 1970s teams is probably a significant over-estimate. The “Weyl method” (whose numbers need to be multiplied by 12 to estimate total % Jews) yields only 1 obviously Jewish name out of 48 for that era while it yields 2 out of 78 for the 21st century. Unfortunately, my ethnicity data from the 1970s is too incomplete for me to give a firm maximum % Jews.”
如果我们认为威斯康星大学教授的数字是正确的话，亚裔数学奥林匹克的数量是犹太人的三倍。考虑到亚裔在18-21这个年龄段的人口是犹太人的三倍（数字来自Ron Unz的文章），那么亚裔在学业上和犹太人差不多，谈不上更优秀。
http://andrewgelman.com/2013/02/ ... atistics-maybe-not/
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雷达卡
发表于 2013-10-10 21:37:00
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