A study in PNAS studied two nearby tribes in northeast India, one with a strongly patriarchal organisation, one with a strongly matriarchal organisation.
A quibble -- "matrilineal" doesn't mean "matriarchal." The former means just that lineage is traced through maternal rather than paternal descent, and it's a well-attested phenomenon in various cultures. The latter means that women have a monopoly, or at least predominance, of social leadership and authority. The supposed existence of such societies in distant places and times is pretty much a myth concocted for ideological purposes.
A quibble -- "matrilineal" doesn't mean "matriarchal." The former means just that lineage is traced through maternal rather than paternal descent, and it's a well-attested phenomenon in various cultures. The latter means that women have a monopoly, or at least predominance, of social leadership and authority. The supposed existence of such societies in distant places and times is pretty much a myth concocted for ideological purposes.
According to the Ars Technica article, in the matrilineal society, "[m]en are not allowed to own land at all, any money or goods earned by a male are handed over to his wife or sister, and inheritances go to the youngest daughter in the family." If that is accurate, then it seems reasonable to call the society matriarchal, at least in certain respects.
On the big issues, race differences, gender differences, sexual preferences, anti communism and islamophobia, the official truth held by the tenured is complex, subtle, and nuanced. They are both permitted and forbidden to acknowledge statistical differences between groups, permitted to acknowledge these differences in some ways and some circumstances and not in other ways and other circumstances, permitted to make deductions from statistical differences to particular cases in some ways and some circumstances and not in other ways and other circumstances, permitted to acknowledge and forbidden to admit various topics
Thus a high IQ tenured individual with a deep knowledge of what is acceptable can steer quite close to the truth on these topics, though the closer he gets, the cleverer and more knowledgeable he has to be, and and on the margins, barely permitted truth has sometimes rather suddenly become forbidden truth, causing some tenured academics to abruptly recant of previously uncontroversial peer reviewed publications.
On the big issues, official truth tends to be sophisticated and subtle: It is on the minor and obscure issues that the official truth tends to be simplistic, rigid, and absurd, and it is on these obscure issues, not the big issues, where one will see O'Brien hold up four fingers and every high IQ person with tenure swears he is holding up five fingers because the party declares it to be so..
The important question is, how do they compare to other sources of evidence in that regard?
To take an issue that is no longer controversial, and therefore less likely to get us massively downvoted than gender differences or little known primitive tribes with strangely politically correct ways of life, like Margaret Mead's Samoans: The Soviet Union.
As a source of information about the Soviet Union, academics were absolutely dreadful and utterly worthless compared to almost any other source of information. They engaged in massive flagrant barefaced lies, and doubting these lies would cause a student to be swiftly failed. After 1990, they improved markedly, and suffered total amnesia that their positions had once been completely different.
One would have received a far more accurate and up to date account of the problems of price control and central planning by listening to old Reagan speeches, than by reading Samuelson.
Recall Samuelson's infamous graph showing that the Soviet Union (thanks to its superior economic system) would inexorably overtake and soon surpass the united states.
The later editions of his book required greater adjustment of inconvenient facts to produce the de...
As someone who's taken the SAT twice in recent months (and half a dozen more as practice), this is simply false.
The SAT's questions for the essays are constructed to be as vague as possible, requiring no knowledge of history, current events, or literature; usually they are things like "Do we value only what we struggle for? " or "Is it always essential to tell the truth, or are there circumstances in which it is better to lie? " or "What gives us more pleasure and satisfaction: the pursuit of our desires or the attainment of them? ". It's possible that a question in the reading section would have a passage from a literary critic espousing the greatness of Steinbeck, followed by a question along the lines of "Why does the author of Passage A argue that Steinbeck was the conscience of America?", but I've never seen a question even this political.
I think sam0345 may be exaggerating with a projection of -10, but I think he isn't exaggerating when he suspects that there are examples of academic unreliability that would be unfeasible to discuss on LW, even though I am a bit more optimistic about what LW can handle than Vladimir_M, for instance. It would be a bad mistake to even attempt to collect evidence on some topics.
I'm a psych junkie, and by following certain online debates and reading journals, I've run into several topics where peer-review studies that aren't publicized contradict the public story. With some of these topics, LW has proven itself to not be quite ready for them, though Vladimir_M sometimes dances around them, and I and others have discussed some of the lighter ones. Other topics are not discussable in public at all in any forum where a speaker wants to retain any reputation. In fact, it would be a hazard to others to even mention these topics on LW, given that many people comment here with their real names, and LW would be tarred by even tolerating serious discussion of those findings.
He's signalling contrarianism, specifically an anti-progressive political attitude. Note that the first sentence is a statement, and I would bet a large amount of money that it's true, based on no more evidence than I've seen on this page. The second sentence is pure snark.
A strange result. When I hear "spatial abilities depend on nurture", I expect something like "our society teaches boys to be good at sports and video games and other things that require spatial reasoning, so they have more practice."
This suggests it's a function of social status, which raises the question of why social status increases spatial reasoning skills. The authors admit education only makes up a third of the difference (and if education was the only issue, we would expect language skills to suffer in the same way, but the "popular wisdom" is that women usually test for better language skills). Homeownership is another weird one - why should owning a home give you better spatial skills (if we assume that the homeowner and their spouse both navigate the rooms of the house the same amount and so on).
The only explanation I can think of is stereotype threat, but again that makes the whole "women are better at language skills" thing weird if we can't explain where the stereotypes came from originally. Now I want to know whether the stereotype that men are better at spatial and women better at language skills evolved multiple times in multiple societies, or whether it's just a function of Westerners introducing it everywhere they went.
Assume for the next 3 sentences that this single study is accurate, replicable and does show what it claims to.
So in the patriarchy the guys finished the task 35% faster. In the Matriarchy were the scores relatively equal to the men in the patriarchy, or the women?
Meaning does patriarchy produce a benefit for the men or does it somehow prevent the women from performing as well?
I checked out the actual study. The mean times to complete a four-piece puzzle representing a horse (their measure of 'spatial ability') was:
The difference between societies is strongly significant: the matrilineal society was significantly better at completing the puzzle. The sex difference in the patrilineal society is significant. The sex difference in the matrilineal society has a p-value of .025: that is, significant at the 5% level but not at the 1% level. In the matrilineal society, education was equal across genders, which explains a third of how much the gap closed (as education favored males in the patrilineal society).
The medians, though, are screwy:
As expected, the mean is larger than the median for every group. The median female in the matrilineal society, however, finished far faster than the median male in the matrilineal society- despite the males having a faster mean overall. The times overall appear lognormally distributed, but they don't provide the distrib...
Meaning does patriarchy produce a benefit for the men or does it somehow prevent the women from performing as well?
Or c), does matriarchy prevent men from performing as well as they could biologically?
I'm not saying that I think this is the reason, just that I don't have evidence to rule it out.
Two quick comments (you can see more detailed stuff here):
Of course nurture plays a role in differences in spatial reasoning. In this particular study, each additional year of education dropped puzzle completion time by 4%. Human brains are very flexible, and good at getting better at doing things that they do repeatedly. Considering nature and nurture to be opposites is not even wrong. The last question of this post gets to the right issue- how do nature and nurture interconnect with one another? What nurture should we pair with a given nature?
Second, one study like this does not highly question a theory by itself. The question is where the winds of evidence blow you, not whether or not you have an arrow in your quiver.
Someone once presented me with a new study on the effects of intercessory prayer (that is, people praying for patients who are not told about the prayer), which showed 50% of the prayed-for patients achieving success at in-vitro fertilization, versus 25% of the control group. I liked this claim. It had a nice large effect size. Claims of blatant impossible effects are much more pleasant to deal with than claims of small impossible effects that are "statistically significant".
So I cheerfully said: "I defy the data."
This critique of the paper makes a good case against it. http://www.pnas.org/content/109/10/E583.full
I'm trying to be charitable here. The problem just seems so, so obvious...at least their conclusion is literally true.
Reporter's Headline: Gender Differences in Muscular Ability Appear to be Nurture
Hypothetical Study abstract:
...Women remain significantly underrepresented in the construction, furniture moving, and bounty hunting workforce. Some have argued that muscular ability differences, which represent the most persistent gender differences in the biological literature, are partly responsible for this gap. The underlying forces at work shaping the observed muscular ability differences revolve naturally around the relative roles of nature and nurture. Although these forces remain among the most hotly debated in all of the sciences, the evidence for nurture is tenuous, because it is difficult to compare gender differences among biologically similar groups with distinct nurture. In this study, we use a large-scale incentivized experiment with nearly 1,300 participants to show that the gender gap in muscular abilities, measured by maximum bench press, disappears when we move from a patrilineal society to an adjoining matrilineal society. We also show that about one-third of the effect can be explained by differences in sports participation. Given that none of our participants have experience with w
"In this study, we use a large-scale incentivized experiment with nearly 1,300 participants to show that the gender gap in spatial abilities, measured by time to solve a puzzle, disappears when we move from a patrilineal society to an adjoining matrilineal society."
It is presently a commonplace of Western culture that women are worse at spatial reasoning than men, and this is commonly attributed to intrinsic biological differences.
It turns out this may be highly questionable. A study in PNAS studied two nearby tribes in northeast India, one with a strongly patriarchal organisation, one with a strongly matriarchal organisation. Both share the same agrarian diet and lifestyle and DNA tests indicate they are closely related.
In the patriarchal society, women did noticeably worse on spatial reasoning. In the matriarchal society, women and men did about the same.
The authors carefully do not overstate their results, claiming only that they demonstrated that culture influences spatial performance "in the task that we study." However, this promisingly suggests quite a bit of room for improvement of measurable aspects of intelligence may be feasible with proper attention to culture and nurture.
What measurable aspects of intelligence do you attribute to genetic causes? Can you test it this well? How would you fix it and help people be all they can be?
News coverage: ArsTechnica.