{"id":592,"date":"2019-07-26T10:54:23","date_gmt":"2019-07-26T14:54:23","guid":{"rendered":"https:\/\/www.shortform.com\/blog\/?p=592"},"modified":"2022-04-13T22:25:40","modified_gmt":"2022-04-14T02:25:40","slug":"limitations-of-intelligence-iq-testing","status":"publish","type":"post","link":"https:\/\/www.shortform.com\/blog\/limitations-of-intelligence-iq-testing\/","title":{"rendered":"The Limitations of Intelligence\/IQ Testing"},"content":{"rendered":"\n<p>A lot of people obsess about intelligence testing and IQ tests. But why does intelligence matter? And what are the limitations of what intelligence testing can tell you? <\/p>\n\n\n\n<!--more-->\n\n\n\n<h2 class=\"wp-block-heading\">Limitations of IQ Testing Geniuses<\/h2>\n\n\n\n<p>If outliers are people whose abilities and experiences are statistically far outside the norm, then <strong>geniuses are the ultimate outliers<\/strong>. We may understand that talent can only take you so far, but we place intelligence on a different plane than mere talent. We assume that the more intelligent you are, the more successful you will be.<\/p>\n\n\n\n<p>However, just as with other personal attributes, <strong>IQ only determines success up to a certain point. <\/strong>After meeting the threshold of \u201csmart enough,\u201d differences in achievement based on IQ tend to level out.<\/p>\n\n\n\n<p><strong>The advantage of IQ can be likened to the advantage of height on a basketball court.<\/strong> A 6\u20193\u201d player has a clear advantage over a player who is 5\u20196\u201d. But a player who\u2019s 6\u20193\u201d and a player who\u2019s 6\u20195\u201d are probably pretty equally matched. When the height difference is so small, other factors, such as speed, agility, and strength, more heavily impact success.&nbsp;There are clear limitations other than height.<\/p>\n\n\n\n<p>It turns out that their IQ does not <em>make<\/em> some geniuses outliers, although a high IQ helps. As we\u2019ve seen in previous chapters, <strong>what truly turns someone into an outlier are the opportunities he\u2019s offered.<\/strong><br><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>The IQ Threshold<\/strong><\/h2>\n\n\n\n<p>Again, it\u2019s not that IQ is irrelevant\u2014in order to handle college work, you probably need an IQ of just above 100 (100 is average). If you succeed in a graduate program your IQ is likely at least 115. The higher your IQ, the more money you\u2019re likely to make and the longer you\u2019re likely to live. It\u2019s just that <strong>beyond a certain point (an IQ of 120), opportunity matters <em>more<\/em>.<\/strong><\/p>\n\n\n\n<p>This is called the \u201cthreshold effect\u201d: once you hit a threshold and you\u2019re \u201csmart enough,\u201d then opportunity plays a larger role in determining your success. This is a serious limitation of IQ testing.<br><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>The University of Michigan Study of Affirmative Action Success<\/strong><\/h4>\n\n\n\n<p>A study at the University of Michigan reported that students of color admitted to law school through affirmative action had lower grades both before and during graduate school, as compared to their white counterparts. If grades correlate with intelligence, the suspicion might then be that students with lower grades might have less success in their careers.<\/p>\n\n\n\n<p><strong><em>After <\/em>law school, however, there was no discernable difference between the two groups of students in terms of various measures of success<\/strong>: salary, reported job satisfaction, rank in profession, social and community contribution, or honors won.<\/p>\n\n\n\n<p>This finding disproved researchers\u2019 initial expectation that the students of color would not be doing as well in their law careers as their white peers. While the students of color were admitted to the program with lower grades, <strong>their grades were still <em>good enough <\/em>to pass the threshold of what was required to succeed in law school and beyond.<\/strong><\/p>\n\n\n\n<p>Why, then, do schools have such stringent academic requirements and low acceptance rates? The standards of competitive academic programs are not as high as they are because the students they reject, who are performing slightly below the standards, wouldn\u2019t be successful there. The standards are high because there\u2019s simply not enough room for all eligible students. This is one of the limitations of IQ testing or other similar tests like admissions tests.<\/p>\n\n\n\n<p>Affirmative action evens the academic playing field by opening doors to students who may not have received as many early opportunities as their white peers, yet who are still fully capable of meeting the program\u2019s requirements.&nbsp;&nbsp;<br><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A lot of people obsess about intelligence testing and IQ tests. But why does intelligence matter? And what are the limitations of what intelligence testing can tell you? <\/p>\n","protected":false},"author":2,"featured_media":560,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[15,9],"tags":[32],"class_list":["post-592","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-education","category-psychology","tag-outliers","","tg-column-two"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.3 (Yoast SEO v24.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The Limitations of Intelligence\/IQ Testing - Shortform Books<\/title>\n<meta name=\"description\" content=\"Are you obsessed about intelligence testing and IQ tests? They have severe limitations in predicting success. Learn more.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.shortform.com\/blog\/limitations-of-intelligence-iq-testing\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The Limitations of Intelligence\/IQ Testing\" \/>\n<meta property=\"og:description\" content=\"Are you obsessed about intelligence testing and IQ tests? They have severe limitations in predicting success. 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