tag:blogger.com,1999:blog-5880610.post1959774323735857020..comments2024-01-13T18:57:18.243-05:00Comments on Information Processing: Bezos on the big brainsSteve Hsuhttp://www.blogger.com/profile/02428333897272913660noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-5880610.post-32901620692407028942013-05-11T00:06:10.361-04:002013-05-11T00:06:10.361-04:00Steve doesn't like to talk about Feynman's...Steve doesn't like to talk about Feynman's IQ, sort of like talking about hemorrhoids. but you are on to something. There are people with great talent in one area who will not have a world beating g and vice versa. Given that Jews excel at maths but their IQ advantage is concentrated in the verbal factor the separation of verbal and mathematical abilities ala the SAT is misleading. One HughLygonnoreply@blogger.comtag:blogger.com,1999:blog-5880610.post-26724503607118620712013-04-16T13:31:34.799-04:002013-04-16T13:31:34.799-04:00It's worth noting that the harvard undergradua...It's worth noting that the harvard undergraduates in this study were probably largely or entirely psychology students since these seem most likely to participate in a psychology study (if only for extra credit). It's likely that both the mean and SD of the sample were deflated slightly by ceiling bumping since the lowest IQ in the sample (97) was 31 points below the sample mean (128) Iamexpertnoreply@blogger.comtag:blogger.com,1999:blog-5880610.post-36855195771203362592013-04-15T20:24:20.734-04:002013-04-15T20:24:20.734-04:00The SD should be only 10 because by largely contro...The SD should be only 10 because by largely controlling for academic success (all Harvard students) we've eliminated nearly half the IQ variation from America. AA-admits don't really raise the variation because there's already ancestry variation in America, so Harvard hasn't added any variation by practicing AA, they've just preserved that source of variation. Legacies are Iamexpertnoreply@blogger.comtag:blogger.com,1999:blog-5880610.post-89148861336540102992013-04-15T16:56:36.958-04:002013-04-15T16:56:36.958-04:00Why is the SD only 10? If anything the distributio...Why is the SD only 10? If anything the distribution is broader than normal because you have legacies/athletes/AA-admits on one end and the "top brains" on the other. In fact, you should really think of the Harvard (or Princeton) population in terms of distinct subgroups. There are roughly a couple hundred +4's in the US freshman pool each year. It is plausible to me that Princeton steve hsuhttp://duende.uoregon.edu/noreply@blogger.comtag:blogger.com,1999:blog-5880610.post-26878154483834396002013-04-15T16:18:24.395-04:002013-04-15T16:18:24.395-04:00I would seriously doubt if even 10% of Harvard cou...I would seriously doubt if even 10% of Harvard could score at the +4 SD level on any highly g loaded IQ test other than college admission tests like the SAT/GRE. People don't understand how stratospherically high the 4 sigma level is. It's FREAKISHLY high. Average IQ at Harvard on the WAIS is around 130 and their SD is probably only 10. Assuming normal distribution, the top 10% of Iamexpertnoreply@blogger.comtag:blogger.com,1999:blog-5880610.post-71349088352875182192013-04-14T12:24:30.636-04:002013-04-14T12:24:30.636-04:00> Long after Bender resigned, Harvard still res...> Long after Bender resigned, Harvard still reserved only 10 percent of its places (roughly 150 spots) for "top brains".<br /><br />In the best tradition of cargo culting and lost purposes. (What's that, you say? The population has *grown* since the 1950s?)gwernhttp://www.gwern.net/noreply@blogger.com