I will have to use virginity statistics as a proxy for the harder-to-measure romancelessness statistics, but these are bad enough. In high school each extra IQ point above average increases chances of male virginity by about 3%. 35% of MIT grad students have never had sex, compared to only 13% of the average high school population. Compared with virgins, men with more sexual experience are likely to drink more alcohol, attend church less, and have a criminal history. A Dr. Beaver (nominative determinism again!) was able to predict number of sexual partners pretty well using a scale with such delightful items as “have you been in a gang”, “have you used a weapon in a fight”, et cetera. An analysis of the psychometric Big Five consistently find that high levels of disagreeableness predict high sexual success in both men and women.
If you’re smart, don’t drink much, stay out of fights, display a friendly personality, and have no criminal history — then you are the population most at risk of being miserable and alone. “At risk” doesn’t mean “for sure”, any more than every single smoker gets lung cancer and every single nonsmoker lives to a ripe old age — but your odds get worse. In other words, everything that “nice guys” complain of is pretty darned accurate. But that shouldn’t be too hard to guess…
Scott Alexander, “Radicalizing the Romanceless”, Slate Star Codex, 2014-08-31.
March 12, 2016
QotD: The bitter truth – the higher your IQ the worse your love life gets
October 29, 2013
Colby Cosh on IQ
In his latest Maclean’s column, Colby Cosh talks about the odd evolutionary advantages that accrue as you get further from the equator:
A new study in the biometric journal Intelligence presents surprising data from Japan that reveal that IQ, imputed from standardized tests given to a large random sample of Japanese 14-year-olds, varies strongly and persistently with latitude. The Japanese are usually thought of — even by themselves — as being quite homogenous ethnically; the myth of the sturdy, super-cohesive “Yamato race” has not yet been entirely obtruded out of existence. But it turns out that the mean IQs of students in Japanese prefectures apparently vary from north to south by two-thirds of a standard deviation — a spread almost as large as the “race gaps” in cognitive performance which trouble education scholars in multicultural countries like ours. Sun-drenched Okinawans, as a group, do not test as well as the snowbound citizens of Akita.
It is an article of liberal faith that IQ is a bogus tool cooked up by white supremacists to justify imperialism and slavery. I am happy to nod along, but the monsters who developed IQ tests certainly never planned on creating strife between the two ends of Honshu Island. Kenya Kura’s study demonstrates the usual statistical connections between IQ and social outcomes, including physical height, income, and divorce and homicide rates. IQ may be a phony racist artifact, but if shoe size predicted life success as well as those stupid little logic puzzles do, every middle-class parent you know would have one of those Brannock foot-measuring thingies mounted proudly on the wall. That is why IQ persists in the top drawer of the psychometrics toolbox.
September 25, 2012
It’s not just your imagination: libertarians really are weird
Jonathan Haidt at the Righteous Mind summarizes a recent study published in PLoS ONE which looked at the psychology of libertarians (using conservatives and liberals as controls):
The findings largely confirm what libertarians have long said about themselves, but they also shed light on why some people and not others end up finding libertarian ideas appealing. Here are three of the major findings:
1) On moral values: Libertarians match liberals in placing a relatively low value on the moral foundations of loyalty, authority, and sanctity (e.g., they’re not so concerned about sexual issues and flag burning), but they join conservatives in scoring lower than liberals on the care and fairness foundations (where fairness is mostly equality, not proportionality; e.g., they don’t want a welfare state and heavy handed measures to enforce equality). This is why libertarians can’t be placed on the spectrum from left to right: they have a unique pattern that is in no sense just somewhere in the middle. They really do put liberty above all other values.
2) On reasoning and emotions: Libertarians have the most “masculine” style, liberals the most “feminine.” We used Simon Baron-Cohen’s measures of “empathizing” (on which women tend to score higher) and “systemizing”, which refers to “the drive to analyze the variables in a system, and to derive the underlying rules that govern the behavior of the system.” Men tend to score higher on this variable. Libertarians score the lowest of the three groups on empathizing, and highest of the three groups on systemizing. (Note that we did this and all other analyses for males and females separately.) On this and other measures, libertarians consistently come out as the most cerebral, most rational, and least emotional. On a very crude problem solving measure related to IQ, they score the highest. Libertarians, more than liberals or conservatives, have the capacity to reason their way to their ideology.
3) On relationships: Libertarians are the most individualistic; they report the weakest ties to other people. They score lowest of the three groups on many traits related to sociability, including extroversion, agreeableness, and conscientiousness. They have a morality that matches their sociability – one that emphasizes independence, rather than altruism or patriotism.
September 23, 2012
Are we really smarter than our great-grandparents?
An interesting article in the Wall Street Journal looks at the documented phenomenon of rapidly rising IQ in modern humans:
Advanced nations like the U.S. have experienced massive IQ gains over time (a phenomenon that I first noted in a 1984 study and is now known as the “Flynn Effect”). From the early 1900s to today, Americans have gained three IQ points per decade on both the Stanford-Binet Intelligence Scales and the Wechsler Intelligence Scales. These tests have been around since the early 20th century in some form, though they have been updated over time. Another test, Raven’s Progressive Matrices, was invented in 1938, but there are scores for people whose birth dates go back to 1872. It shows gains of five points per decade.
In 1910, scored against today’s norms, our ancestors would have had an average IQ of 70 (or 50 if we tested with Raven’s). By comparison, our mean IQ today is 130 to 150, depending on the test. Are we geniuses or were they just dense?
[. . .]
Modern people do so well on these tests because we are new and peculiar. We are the first of our species to live in a world dominated by categories, hypotheticals, nonverbal symbols and visual images that paint alternative realities. We have evolved to deal with a world that would have been alien to previous generations.
A century ago, people mostly used their minds to manipulate the concrete world for advantage. They wore what I call “utilitarian spectacles.” Our minds now tend toward logical analysis of abstract symbols — what I call “scientific spectacles.” Today we tend to classify things rather than to be obsessed with their differences. We take the hypothetical seriously and easily discern symbolic relationships.
