Category Archives: IQ

10 Lessons of an MIT Education: Gian-Carlo Rota

Source: Texas A&M website, Apr 1997

You can and will work at a desk for seven hours straight, routinely.

the discipline of intensive and constant work.

You learn what you don’t know you are learning.

Students join forces on the problem sets, and some students benefit more than others from these weekly collective efforts. The most brilliant students will invariably work out all the problems and let other students copy, and I pretend to be annoyed when I learn that this has happened.

But I know that by making the effort to understand the solution of a truly difficult problem discovered by one of their peers, students learn more than they would by working out some less demanding exercise.

By and large, “knowing how” matters more than “knowing what.”

at MIT, “knowing how” is held in higher esteem than “knowing what” by faculty and students alike. Why?

  It is my theory that “knowing how” is revered because it can be tested. One can test whether a student can apply quantum mechanics, communicate in French, or clone a gene. It is much more difficult to asses an interpretation of a poem, the negotiation of a complex technical compromise, or grasp of the social dynamics of a small, diverse working group. Where you can test, you can set a high standard of proficiency on which everyone is agreed; where you cannot test precisely, proficiency becomes something of a judgment call.

In science and engineering, you can fool very little of the time.

 An education in engineering and science is an education in intellectual honesty. Students cannot avoid learning to acknowledge whether or not they have really learned. Once they have taken their first quiz, all MIT undergraduates know dearly they will pay if they fool themselves into believing they know more than is the case.

  On campus, they have been accustomed to people being blunt to a fault about their own limitations-or skills-and those of others. Unfortunately, this intellectual honesty is sometimes interpreted as naivete.

You don’t have to be a genius to do creative work.

The drive for excellence and achievement that one finds everywhere at MIT has the democratic effect of placing teachers and students on the same level, where competence is appreciated irrespective of its provenance.

Students learn that some of the best ideas arise in groups of scientists and engineers working together, and the source of these ideas can seldom be pinned on specific individuals. The MIT model of scientific work is closer to the communion of artists that was found in the large shops of the Renaissance than to the image of the lonely Romantic genius.

You must measure up to a very high level of performance.

What matters most is the ambiance in which the course is taught; a gifted student will thrive in the company of other gifted students. An MIT undergraduate will be challenged by the level of proficiency that is expected of everyone at MIT, students and faculty.

The expectation of high standards is unconsciously absorbed and adopted by the students, and they carry it with them for life.

The world and your career are unpredictable, so you are better off learning subjects of permanent value.

You are never going to catch up, and neither is anyone else.

MIT students often complain of being overworked, and they are right. When I look at the schedules of courses my advisees propose at the beginning of each term, I wonder how they can contemplate that much work. My workload was nothing like that when I was an undergraduate.

There is some satisfaction, however, for a faculty member in encountering a recent graduate who marvels at the light work load they carry in medical school or law school relative to the grueling schedule they had to maintain during their four years at MIT.

The future belongs to the computer-literate-squared.

The undergraduate curriculum in computer science at MIT is probably the most progressive and advanced such curriculum anywhere. Rather, the students learn that side by side with required courses there is another, hidden curriculum consisting of new ideas just coming into use, new techniques and that spread like wildfire, opening up unsuspected applications that will eventually be adopted into the official curriculum.

Keeping up with this hidden curriculum is what will enable a computer scientist to stay ahead in the field. Those who do not become computer scientists to the second degree risk turning into programmers who will only implement the ideas of others.

Mathematics is still the queen of the sciences.

Having tried in lessons one through nine to take an unbiased look at the big MIT picture, I’d like to conclude with a plug for my own field, mathematics.

When an undergraduate asks me whether he or she should major in mathematics rather than in another field that I will simply call X, my answer is the following: “If you major in mathematics, you can switch to X anytime you want to, but not the other way around.”

Alumni who return to visit invariably complain of not having taken enough math courses while they were undergraduates. It is a fact, confirmed by the history of science since Galileo and Newton, that the more theoretical and removed from immediate applications a scientific topic appears to be, the more likely it is to eventually find the most striking practical applications.

Consider number theory, which only 20 years ago was believed to be the most useless chapter of mathematics and is today the core of computer security. The efficient factorization of integers into prime numbers, a topic of seemingly breathtaking obscurity, is now cultivated with equal passion by software desigers and code breakers.

I am often asked why there are so few applied mathematicians in the department at MIT. The reason is that all of MIT is one huge applied mathematics department; you can find applied mathematicians in practicially every department at MIT except mathematics.

Students Matter; Teachers Less …

Source: Unz.com, Jul 2019

Over the last 50 years in developed countries, evidence has accumulated that only about 10% of school achievement can be attributed to schools and teachers while the remaining 90% is due to characteristics associated with students.

Teachers account for from 1% to 7% of total variance at every level of education. For students, intelligence accounts for much of the 90% of variance associated with learning gains.

The largest effect of schooling in the developing world is 40% of variance, and that includes “schooling” where children attend school inconsistently, and staff likewise.

I further argue that the majority of the variance in educational outcomes is associated with students, probably as much as 90% in developed economies.

A substantial portion of this 90%, somewhere between 50% and 80% is due to differences in general cognitive ability or intelligence. Most importantly, as long as educational research fails to focus on students’ characteristics we will never understand education or be able to improve it.

The world’s global score is 82 & IQ distributions

Source: ZeroHedge, Apr 2019

Abilities Based upon IQ

IQ Matters for Invention

Source: NBER, Dec 2017

… IQ has both a direct effect on the probability of inventing which is almost five times as large as that of having a high-income father, and an indirect effect through education …

http://truevinelifeline.com/common-sense/social-iq-main-image/ 

… an R-squared decomposition shows that IQ matters more than all family background variables combined; moreover, IQ has both a direct and an indirect impact through education on the probability of inventing, and finally the impact of IQ is larger and more convex for inventors than for medical doctors or lawyers. Third, to address the potential endogeneity of IQ, we focused on potential inventors with brothers close in age. This allowed us to control for family-specific time-invariant unobservables. We showed that the effect of visuospatial IQ on the probability of inventing is maintained when adding these controls.

College Requires a 115 IQ (Min)

Source: AlFinNextLevel website, Jun 2016

Most young people simply do not have the IQ to take a rigorous four year degree that will provide a reasonable return on investment.

There is no magic point at which a genuine college-level education becomes an option, but anything below an IQ of 110 is problematic. If you want to do well, you should have an IQ of 115 or higher. Put another way, it makes sense for only about 15% of the population, 25% if one stretches it, to get a college education. And yet more than 45% of recent high school graduates enroll in four-year colleges. Adjust that percentage to account for high-school dropouts, and more than 40% of all persons in their late teens are trying to go to a four-year college — enough people to absorb everyone down through an IQ of 104.__ Charles Murray quoted in http://www.joannejacobs.com/2007/01/not-smart-enough-for-college/

Estimated IQ by Intended College Major

Source: StatisticBrain, Mar 2017

IQ Estimates by College Major

Graduate Record Examination Scores Verbal SAT Quant SAT Average SAT Average IQ
Standard Deviation +/- 0.80
Physics & Astronomy 533 736 1269 133
Philosophy 590 638 1228 129
Mathematical Sciences 502 733 1235 130
Materials Engineering 494 727 1221 129
Economics 503 706 1209 128
Chemical Engineering 485 726 1211 128
Other Engineering 493 714 1207 128
Mechanical Engineering 469 724 1193 126
Other Humanities & Art 563 599 1162 124
Physical Sciences 486 697 1183 125
Engineering 468 719 1187 126
Electrical Engineering 459 726 1185 126
Banking & finance 467 711 1178 125
Chemistry 486 680 1166 124
Computer & Information Science 466 701 1167 124

IQ is Highly Heritable

Source: Association for Psychological Science, 2016

 the heritability of intelligence has been shown consistently to increase linearly throughout the life course in more than three decades of research in longitudinal as well as crosssectional analyses and in adoption as well as twin studies (McGue, Bouchard, Iacono, & Lykken, 1993; Plomin, 1986; Plomin & Deary, 2015). For example, as summarized in Figure 3, an analysis of cross-sectional data for 11,000 pairs of twins—larger than all previous twin studies combined—showed that the heritability of intelligence increases significantly from 41% in childhood (age 9) to 55% in adolescence (age 12) and to 66% in young adulthood (age 17; Haworth et al., 2010). 

Some evidence suggests that heritability might increase to as much as 80% in later adulthood independent of dementia (Panizzon et al., 2014); other results suggest a decline to about 60% after age 80 (Lee, Henry, Trollor, & Sachdev, 2010), but another study suggests no change in later life (McGue & Christensen, 2013).

Learning Without Questioning –Why Asians do not win Nobel prizes

Source: James Thompson blog, Apr 2014

Asians (Chinese, Koreans, and Japanese) are supposed to have higher IQs (about 105 on average) than North Europeans (100), while sciences have been developed overwhelmingly by Europeans and their offshoots. Why Asians are lacking in scientific success might relate to two factors:

1. Low curiosity, which is expressed by lower Openness to experience (-.59 SD) as shown in various cross-cultural personality comparisons.

2.  Collectivism, which is captured by various individualism-collectivism indices such as the Hofstede individualism index (IDV), or Hofstede and Triandis individualism index (about -2 SD). The genetic underpinnings for these traits, such as DRD4, 5HTTLPR, and OPRM1 have also become increasingly apparent.

To integrate these psychological traits, a “q” factor is constructed by factor analysis on measures of Openness and Collectivism, which are then correlated with variables measuring academic achievements and also student assessments. It is found that IQ scores coupled with “q” factor scores neatly predict racial scientific achievements and also world-wide student assessments.  

Google DOC presentation: 

A Century of Research on Gifted Kids

Source: Psychology Today, Jan 2017

… advanced educational stimulation matters for gifted individuals to fully develop their talent and actualize their intellectual potential. One study from SMPY showed that grade skipping is a highly effective intervention on later achievement, and another study showed that it may not necessarily be one specific intervention that matters for the development of gifted youth but rather the right mix and intensity of interventions—the appropriate educational dosage—to keep them intellectually stimulated and engaged. Additionally, findings from SMPY have also shown that the willingness to work long hours varies greatly among the gifted population and thus is also likely connected to long-term development of expertise.

 

Genetic Scores and Average IQ

Source: Infoproc website, Oct 2016

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