Yesterday I wrote about bottlenecks to learning. I wanted to discuss the effectiveness of homework. If it works well, that would suggest students are bottlenecked on examples and repetition. If it works poorly, it would have to be something else.
Unfortunately, all the research on this (showcased in eg Cooper 2006) is terrible.
Most studies cited by both sides use “time spent doing homework” as the independent variable, then correlate it with test scores or grades. If students who do more time on homework get better test scores, they conclude homework works; otherwise, that it doesn’t.
One minor complaint about this methodology is that we don’t really know if anyone is reporting time spent on homework accurately. Cooper cites some studies showing that student-reported time-spent-on-homework correlates with test scores at a respectable r = 0.25. But in the same sample, parent-reported time-spent-on-homework correlates at close to zero. Cooper speculates that the students’ estimates are better than the parents’, and I think this makes sense — it’s easier to reduce a correlation by adding noise than to increase it — but in the end we don’t know. According to a Washington Post article, students in two very similar datasets reported very different amounts of time spent on homework — maybe because of the way they asked the question? I don’t know, self-report from schoolchildren seems fraught.
But this is the least of our problems. This methodology assumes that time spent on homework is a safe proxy for amount of homework. It isn’t. Students may spend less time on homework because they’re smart, find it easy, and can finish it very quickly. Or they might spend more time on homework because they love learning and care about the subject matter a lot. Or they might spend more time because they’re second-generation Asian immigrants with taskmaster parents who insist on it being perfect. Or they might spend less time because they’re in some kind of horrible living environment not conducive to sitting at a desk quietly. All of these make “time spent doing homework” a poor proxy for “amount of homework that teacher assigned” in a way that directly confounds a homework-test scores correlation. Most studies don’t bother to adjust for these factors. The ones that do choose a few of them haphazardly, make wild guesses about what model to use, and then come up with basically random results.
Both homework proponents (Harris Cooper) and opponents (Alfie Kohn) briefly nod to this problem, then take these studies seriously anyway. If you do that, you find that probably homework isn’t helpful in elementary school, but might be helpful during high school (though some people disagree with either half of that statement). But why would you take these seriously?
Scott Alexander, “Nobody Knows How Well Homework Works”, Astral Codex Ten, 2022-07-07.
October 8, 2022
QotD: Does homework, well, work? ¯\_(ツ)_/¯
October 3, 2022
September 25, 2022
The five-paragraph essay straitjacket
In Aeon, David Labaree discusses the good intent and terrible results of forcing students to rigidly follow the “five paragraph” model of essay writing:
Schools and colleges in the United States are adept at teaching students how to write by the numbers. The idea is to make writing easy by eliminating the messy part – making meaning – and focusing effort on reproducing a formal structure. As a result, the act of writing turns from moulding a lump of clay into a unique form to filling a set of jars that are already fired. Not only are the jars unyielding to the touch, but even their number and order are fixed. There are five of them, which, according to the recipe, need to be filled in precise order. Don’t stir. Repeat.
So let’s explore the form and function of this model of writing, considering both the functions it serves and the damage it does. I trace its roots to a series of formalisms that dominate US education at all levels. The foundation is the five-paragraph essay, a form that is chillingly familiar to anyone who has attended high school in the US. In college, the model expands into the five-section research paper. Then in graduate school comes the five-chapter doctoral dissertation. Same jars, same order. By the time the doctoral student becomes a professor, the pattern is set. The Rule of Five is thoroughly fixed in muscle memory, and the scholar is on track to produce a string of journal articles that follow from it. Then it’s time to pass the model on to the next generation. The cycle continues.
Edward M White is one participant in the cycle who decided to fight back. It was the summer of 2007, and he was on the plane home from an ordeal that would have crushed a man with a less robust constitution. An English professor, he had been grading hundreds of five-paragraph essays drawn from the 280,000 that had been submitted that June as part of the Advanced Placement Test in English language and composition. In revenge, he wrote his own five-paragraph essay about the five-paragraph essay, whose fourth paragraph reads:
The last reason to write this way is the most important. Once you have it down, you can use it for practically anything. Does God exist? Well you can say yes and give three reasons, or no and give three different reasons. It doesn’t really matter. You’re sure to get a good grade whatever you pick to put into the formula. And that’s the real reason for education, to get those good grades without thinking too much and using up too much time.
White’s essay – “My Five-Paragraph-Theme Theme” – became an instant classic. True to the form, he lays out the whole story in his opening paragraph:
Since the beginning of time, some college teachers have mocked the five-paragraph theme. But I intend to show that they have been mistaken. There are three reasons why I always write five-paragraph themes. First, it gives me an organisational scheme: an introduction (like this one) setting out three subtopics, three paragraphs for my three subtopics, and a concluding paragraph reminding you what I have said, in case you weren’t paying attention. Second, it focuses my topic, so I don’t just go on and on when I don’t have anything much to say. Three and only three subtopics force me to think in a limited way. And third, it lets me write pretty much the same essay on anything at all. So I do pretty well on essay tests. A lot of teachers actually like the five-paragraph theme as much as I do.
Note the classic elements of the model. The focus on form: content is optional. The comfortingly repetitive structure: here’s what I’m going to say, here I am saying it, and here’s what I just said. The utility for everyone involved: expectations are so clear and so low that every writer can meet them, which means that both teachers and students can succeed without breaking a sweat – a win-win situation if ever there was one. The only thing missing is meaning.
For students who need a little more structure in dealing with the middle three paragraphs that make up what instructors call the “body” of the essay, some helpful tips are available – all couched in the same generic form that could be applicable to anything. According to one online document by a high-school English teacher:
The first paragraph of the body should contain the strongest argument, most significant example, cleverest illustration, or an obvious beginning point. The first sentence of this paragraph should include the “reverse hook” which ties in with the transitional hook at the end of the introductory paragraph. The topic for this paragraph should be in the first or second sentence. This topic should relate to the thesis statement in the introductory paragraph. The last sentence in this paragraph should include a transitional hook to tie into the second paragraph of the body.
You probably won’t be surprised that the second paragraph “should contain the second strongest argument, second most significant example, second cleverest illustration, or obvious follow-up to the first paragraph …” And that the third paragraph “should contain the third strongest argument …” Well, you get the picture.
August 2, 2022
July 22, 2022
Sexual liberation to sexual revolution to … today’s sexual desert
Chris Bray thinks that the sexual revolution “missed a turn, somewhere out in the desert”:
The discussion of what we didn’t mean to do is becoming an interesting one:
After decades of sexual liberation — Mattachine, Stonewall, Loving v. Virginia, Griswold v. Connecticut, Second Wave feminism and the Sexual Revolution, Lawrence v. Texas, Obergefell v. Hodges, and whatever else I’m missing in there (and I’m not sure Roe belongs on the list, but maybe) — we somehow arrive at a moment in which we merge a sexualized display of childhood and a relentless media-driven commodification of sexuality with the very clear reality that nobody’s having any sex:
One of the most comprehensive sex studies to date — the National Survey of Sexual Health and Behavior — found evidence of declines in all types of partnered sexual activity in the U.S. Over the course of the study from 2009 to 2018, those surveyed reported declines in penile-vaginal intercourse, anal sex and partnered masturbation …
Over the last 22 years, Herbenick has co-authored several studies about our sexual activity. Her most recent research finds that all of us, regardless of age, are having less sex, with the most dramatic decline among teenagers.
At the start of the study in 2009, 79% of those ages 14 to 17, revealed they were not having sex. By 2018, that number rose to 89%.
Liberation stabbed pleasure in the heart; we emptied sex. Hypersexualization turns out to be desexualization. The unrelenting joylessness and death odor of contemporary sexual culture emerges from seventy years of growing openness and freedom. How?
There’s no way to fully cover a question of that scope in a single post — but I refer, as a start, to the earlier posts I wrote about the sexualization of childhood and the way Jim Jones used sex as a weapon. Breaking barriers and repressive anchors broke connections and reference points: Yes, some people were trapped in oppressive societal norms, and it’s not at all my view that all the sexual liberation in our past wasn’t really liberating. But we broke marriage to set people free, and whoops. Some people experienced bourgeois heteronormativity as a prison, and so set out to release everybody from their cages, which seem to have not been cages for a whole lot of people. Congratulations, we’ve freed you from being part of a family.
July 19, 2022
How dating apps have changed the dating world
Rob Henderson on the changes dating sites have accelerated in the dating community:
“In the United States, 35 percent of Tinder users are college students ages 18 to 24 … ‘I’ve heard a joke on campus that goes something like this: ‘First base is hooking up, second base is talking, third base is going on a date and fourth base is dating’.“ (source).
I am just old enough to remember what the dating scene was like before the rise of Tinder and other dating/hook-up apps. It has changed a lot.
2012 was another world in many ways.
The situation has changed for everyone on the dating market. Even those who don’t use these apps. This is because even for the people who don’t use the apps, they still live in an environment where others use them. Over time, those who don’t use apps must adapt to the preferences and behavior of those who use them. Not the other way around.
One example of how the scene has changed. I have a friend from college. A good-looking guy. He showed me how many women he has matched with: More than 21,000. Twenty-one thousand. Tinder actually identified him as a valuable user early on, and gave him free perks and upgrades. They lifted his radius restrictions. This allowed him to match with even more women. I have another friend. Doesn’t have the best pictures on his profile. But not a bad looking guy. Over roughly the same period of time as my other friend, he has matched with seven women.
Some findings on dating apps:
- 18 to 25 percent of Tinder users are in a committed relationship.
- Women aged 23 to 27 are twice as likely to swipe right (“liked”) on a man with a master’s degree compared with a bachelor’s degree.
- Men swipe right (“liked”) on 62 percent of the women’s profiles they see; women swipe right (“liked”) on only 4.5 percent of the men’s profiles they see.
- Half of men who use dating apps while in a committed relationship reported having sex with another person they met on a dating app. All women who used dating apps while in a committed relationship reported having sex with another person they met on a dating app.
- 30 percent of men who use Tinder are married.
- In terms of attractiveness, the bottom 80% of men are competing for the bottom 22% of women and the top 78% of women are competing for the top 20% of men.
One way dating apps might be changing the dating scene. People used to have to go out to meet people. And it was costly to lose a relationship partner, in part because of the process involved in meeting someone new. Today, people know that a new partner is a few swipes away. Partners might be more replaceable. If things start deteriorating with their current partner, some can pull out a goldmine in their pocket.
There may be some sexual stratification going on as well. My two friends are examples of the above finding that being slightly more attractive as a man leads to far more matches.
June 22, 2022
April 24, 2022
April 16, 2022
How much of teenagers identifying as transgender is “social contagion and the development of a new youth subculture”?
The sheer number of children and teens who are deciding that they are “trans” is far in excess of previous generations. How much of this phenomena may be accounted for by social contagion?
My teenage daughter has decided that she is “trans”. So have all her friends. Not some of them. Not most of them. Every. Single. One.
She had never heard of trans, and had no signs of gender dysphoria, until she was moved to a new, cool trans-friendly school by her unsuspecting, politically liberal parents. There she met a group of geeky (or dare I say nerdy?), smart, slightly (but not very) gender nonconforming, artsy kids. As I understand it, they all discovered “trans” together. The old “cis” friends were swiftly discarded in favour of this exciting new peer group.
Exploring “trans stuff” online with friends is a source of great interest and excitement — a real social event. What’s not to love about 245 gender identities, complete with their own unique flags? Then there are those cool neo-pronouns. Forcing your out-of-touch old parents to refer to you as “ze” or “ey” (how do you pronounce that again??) in the name of “inclusivity” is just too delicious to resist. The manga, the cute avatars in computer games, the blue or pink hair — all part of the fun as well. Mocking the outgroup (in this case so-called “cis” people in general and the dreaded TERFs in particular) is also good for a laugh — especially if they happen to be your parents as well.
There is even a special vocabulary with lots of new terms — deadnaming, misgendering, sex assigned at birth, and much more. If these concepts need to be explained to your uncool parents (accompanied by eye rolls of course), so much the better.
Bonding with friends, searching for their identity and place in life, working out their sexuality, separating from family — these are all normal developmental tasks for teens. For many, youth subcultures can be a natural part of that. Some are harmless. Some, like drug use and extreme dieting, not so much. But in the case of the latter, sensible adults usually intervene to help steer the young people in the right direction. Not in the case of trans. Here we have adults steering kids down a dangerous path, which involves permanent, life altering drugs and surgeries for which there is no good evidence base.
For many of these kids, LGBTQ+ is a youth subculture. It really is as simple as that. Recent surveys have been identifying skyrocketing rates of “trans” or “queer” identification in young people. One found that an astonishing 39% of young adults in the US aged between 18-24 identified with the label LGBT — the figure for teens <18 may well be even higher. Of course this figure includes gay and lesbian people as well as those identifying as trans. Another poll, which looked only at gender, found that nearly 10% of US high schoolers identified as “gender diverse”. Yet another survey gives a lower figure of 1.8%. Whichever figure is correct, this is a huge explosion in numbers over a very short period of time. As endocrinologist Dr Will Malone asks; “How do we reconcile these numbers with 2013 data reporting the prevalence of adult gender dysphoria to be a rare 2-14 in 100,000?”
Social contagion and the development of a new youth subculture, that’s how.
H/T to Blazing Cat Fur for the link.
February 24, 2022
QotD: Being 18
I was wondering over the weekend what it’s like to be 18. This is not because I want to be 18 again. I am deeply grateful to have escaped my youth, a time that now looks to me like Eastern Europe before the collapse of the Soviets, a time defined by arbitary restrictions, ideological immobility, and terrible shortages (in my case, sex, sense and sensibility).
Grant McCracken, “What’s it like being 18?”, This Blog Sits at the, 2006-03-27.
January 16, 2022
Is the narrative about the Trans Movement about to change?
In the latest Weekly Dish, Andrew Sullivan marks a perhaps significant change in how mainstream media outlets are discussing the Trans Movement:
An unusual thing happened in the conversation about transgender identity in America this week. The New York Times conceded that there is, indeed, a debate among medical professionals, transgender people, gays and lesbians and others about medical intervention for pre-pubescent minors who have gender dysphoria. The story pulled some factual punches, but any mildly-fair airing of this debate in the US MSM is a breakthrough of a kind.
Here’s the truth that the NYT was finally forced to acknowledge: “Clinicians are divided” over the role of mental health counseling before making irreversible changes to a child’s body. Among those who are urging more counseling and caution for kids are ground-breaking transgender surgeons. This very public divide was first aired by Abigail Shrier a few months ago on Bari’s Substack, of course, where a trans pioneer in sex-change surgery opined: “It is my considered opinion that due to some of the … I’ll call it just ‘sloppy’, sloppy healthcare work, that we’re going to have more young adults who will regret having gone through this process.” Oof.
The NYT piece also concedes another key fact: that puberty blockers are neither harmless nor totally reversible. Money quote:
Some of the drug regimens bring long-term risks, such as irreversible fertility loss. And in some cases, thought to be quite rare, transgender people later “detransition” to the gender they were assigned at birth. Given these risks, as well as the increasing number of adolescents seeking these treatments, some clinicians say that teens need more psychological assessment than adults do.
I would think that, just as a general rule, minors making permanent, life-changing decisions should receive more psychological treatment than adults. How on earth is this not the default? In what other field of medicine do patients diagnose themselves, and that alone is justification for dramatic, irreversible medication?
The NYT doesn’t give you the data for the “increasing number” of transitions because it’s hard to find in the US. In the UK, however, the data show a 3,200 percent rise in adolescents seeking transition over a decade — 70 percent of whom are girls seeking to become boys, a break from historical norms where boys/men were much more likely to seek transition. Nor does the NYT give any data for “detransitioners”. But any brief look online suggests they are not exactly “quite rare”. They are, in fact, becoming a small but recognizable and tenacious part of the trans landscape. And among the risks of puberty blockers that the NYT does not mention are neurological damage, bone-density loss, and a permanent inability to experience sexual pleasure. And in almost every case (98 percent in one report), puberty blockers are never reversed.
December 18, 2021
QotD: The Game of Life
Life, as it is often called, was conceived as a modern take on a board game designed in 1860 … called the Checkered Game of Life …
By 1960, the Checkered Game of Life had disappeared from most American game tables. It had been replaced by such as entrants as Monopoly, which rewarded winners with riches, punished losers with penury and became one of the top-selling board games in the United States during the Depression. Mr. Klamer’s task, as assigned by the Milton Bradley Co., was to create a game to mark the company’s 100th anniversary … With the assistance of colleagues … Mr. Klamer updated [the Checkered Game of Life] for the aspirations of contemporary players. For instance, players of the new version would choose between a “business” route, which afforded an immediate salary, and “college”, which promised a larger but delayed one … To board game enthusiasts, the Game of Life was a beauty: a marvel of topography with raised roads that players traversed in their station-wagon game pieces. According to the volume Timeless Toys: Classic Toys and the Playmakers Who Created Them, by Tim Walsh, Life was “the first three-dimensional game board using plastic.” … Destinations in the 1960 version included “Millionaire Acres” — or the “Poor Farm”.
From “Reuben Klamer, toy inventor who created the Game of Life, dies at 99” (WaPo).
I played that game when it was new in the 1960s, and I guess those 3-dimensional aspects and the built-in spinner were pretty exciting. But what a drag it made life seem! You’re a peg in a car and you gather family members to fill the hole in the car and keep driving till you get to the end. At least the end wasn’t called Death.
And it seems that this is where we Baby Boomers learned we’d better go to college. The game had determined the income difference. But you didn’t even have any fun in college or learn anything deep. You just upped your earning potential, and the point of life/Life was to make the most money. What an awful game!
Ann Althouse, “Life as it is often called, was conceived as a modern take on a board game designed in 1860 … called the Checkered Game of Life“, Althouse, 2021-09-17.
December 2, 2021
If there are no restrictions on voting age, what other expansions of the franchise might amuse the Supreme Court of Canada?
In Wednesday’s NP Platformed newsletter, Colby Cosh suggests that, given the SCC’s demonstrated preference for getting rid of restrictions on voting rights, we may be in for some interesting legal times:

“Supreme Court of Canada, Ottawa” by daniel0685 is licensed under CC BY 2.0
A band of plucky teens, we are told, are suing to have Canada’s voting age lowered. They are not the first to try, and it goes without saying that the youngsters are a front for a gaggle of do-gooder groups who think that it would somehow purify our democracy in the fires of justice if 16-year-olds could vote. NP Platformed thinks this is a terrible idea that has logical problems on its face. If the age-18 voting limitation can’t be defended, how can any such limit be defended?
Rest assured that the grown-up lobbyists who have a sore bum about the voting age won’t be recruiting four-year-old boys to articulate their cause or serve as litigants. It will all be photogenic, politically sophisticated, fantastically unrepresentative teenagers.
But let’s set the snark aside for a moment. You may be asking, as we here at NP Platformed world headquarters did, how a charter challenge to the voting age can happen at all. Surely there’s solid caselaw about this? If you look into the matter, as we did, you might find yourself saying “Uh oh.” As we did.
The most revealing discussion we could find is tucked away in a footnote in a 2019 paper by University of Ottawa Prof. Michael Pal. Within this wad of small print, Prof. Pal outlines the whole issue. The charter says flat out that “Every citizen of Canada” has the right to vote in elections, and various species of legal voting disability have been removed over time, leaving persons under 18 as the only citizens within Canada who cannot exercise this right.
[…]
“The analogy between youth voting restrictions and inmate disenfranchisement breaks down because the type of judgment Parliament is making in the two scenarios is very different. In the first case, Parliament is making a decision based on the experiential situation of all citizens when they are young. It is not saying that the excluded class is unworthy to vote, but regulating a modality of the universal franchise. In the second case, the government is making a decision that some people, whatever their abilities, are not morally worthy to vote — that they do not ‘deserve’ to be considered members of the community and hence may be deprived of the most basic of their constitutional rights. But this is not the lawmakers’ decision to make.”
We’re just gonna say it: “regulating a modality of the universal franchise” is drivel. If this is the bedrock on which age restrictions on voting rest, age restrictions on voting are in trouble.
The constitutionality of a voting age was also discussed in the Supreme Court’s 2019 Frank case, which annihilated the voting eligibility restrictions for Canadian citizens living abroad. In that case it was dissenters, specifically justices Suzanne Côté and Russell Brown, who brought the matter up. If legislatures can’t restrict the voting rights of Canadians who have been living in Cucamonga or Timbuktu, how can they impose any limit at all?
The dissenting pair quietly pointed out (at paragraph 144) that the phrase “regulating a modality” is gaseous nonsense, and that the Supreme Court, in its endless lust for making the franchise more inclusive, seems to have made any restrictions at all untenable. (Why, indeed, should the franchise be limited to citizens? Municipalities are already asking this question!)
November 23, 2021
QotD: Generation X and the 1990s
When I retired, a retro 1990s fad was just gearing up on campus. It was an Uncanny Valley kind of experience. There they were, dressing like day-glo lumberjacks and listening to knockoff BritPop, but still plodding around campus with that peculiarly late-Millennial affect. You know the one — half secret policeman, half cringing mouse. Unpleasant, but it got me thinking about my own college years back at the dawn of the Clinton Era. We really screwed the pooch, didn’t we?
I’m referring, of course, to Gen X’s patented brand of “irony”. We’ve talked about this before, but here’s a quick recap: Every middle-class kid born after about 1965 was raised to believe that Authenticity was the thing, the only thing. Just do what you feel. Question authority. Don’t listen to The Man!
The problem, of course, is that we were told this by The Man.
It had a weird, telescoping effect. On campus, you were surrounded by people who actually were hippies, plus a whole bunch of wild-eyed fanatics who were sure they would’ve made truly excellent hippies if they hadn’t been in elementary school at the time, plus a bunch of kids — these would be your classmates — who thought of “Woodstock” as a brand name, a kind of backpacking-through-Europe, taking-a-year-off-to-find-myself experience that everyone has as a matter of course before settling down to the serious business of making partner at the law firm.
In short: Our parents were stuck in adolescence, and, being adolescents ourselves, we didn’t understand that “Rebellion” wasn’t something the hippies invented. We wanted to experience sex, drugs, and rock’n’roll, too, but since the Baby Boomers treated those as their exclusive property instead of what they actually are — i.e. the natural impulses of teenagers in all times and places — we had to be all, like, you know, whatever about it. […]
That was the 1990s. Faced with a paradox that everything your parents say, do, and believe is lame — according to your parents! — the only safe way is to make sure nobody can figure out exactly what your attitude is at any given instant. You might end up working 90 hour weeks at the office to pay the nut on the McMansion and the Volvo the same way they did, but at least you’d be, you know, ironic about it. The ketman of the suburbs.
See what happens when you listen to your elders, kids?
Severian, “The Virtue of Hypocrisy”, Rotten Chestnuts, 2019-01-19.
November 17, 2021
Child Soldier Camps, Captured Crewmen, and Chaotic Air Forces – WW2 – OOTF 025
World War Two
Published 16 Nov 2021How did the “Nazi pirates” treat their captured crewmen? Why didn’t the Soviets just bomb the motionless German armies stuck in a traffic jam? And how did the Nazi government convince parents to allow their children to go to “evacuation” camps? Find out the answers in this latest edition of Out of the Foxholes!
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