Results for “Tests”
662 found

Were U.S. nuclear tests more harmful than we had thought?

So says Keith A. Meyers, job candidate from University of Arizona.  I found this to be a startling result, taken from his secondary paper:

During the Cold War the United States detonated hundreds of atomic weapons at the Nevada Test Site. Many of these nuclear tests were conducted above ground and released tremendous amounts of radioactive pollution into the environment. This paper combines a novel dataset measuring annual county level fallout patterns for the continental U.S. with vital statistics records. I find that fallout from nuclear testing led to persistent and substantial increases in overall mortality for large portions of the country. The cumulative number of excess deaths attributable to these tests is comparable to the bombings of Hiroshima and Nagasaki.

Basically he combines mortality estimates with measures of Iodine-131 concentrations in locally produced milk, “to provide a more precise estimate of human exposure to fallout than previous studies.” The most significant effects are in the Great Plains and Central Northwest of America, and “Back-of-the-envelope estimates suggest that fallout from nuclear testing contributed between 340,000 to 460,000 excess deaths from 1951 to 1973.”

His primary job market paper is on damage to agriculture from nuclear testing.

Two rationality tests

If you were trying to assess a person’s rationality on the basis of one not-directly-verbal indicator, given his or her behavior over the course of a meal, what would it be?

And if you could ask only one question of a person, to assess his or her rationality, which question would it be?

That’s from me!  As for the first benchmark, you cannot refer to verbal answers to questions you might ask.  You could however nominate “the person hesitated for a long time before answering each question,” or something similar along the behavioral dimension.  That is what I mean by “not-directly-verbal.”

Part of me wishes to suggest “are they carrying a book or not?”, but alas too many semi-rational people don’t do that.  I might consider the process by which they select a menu item and order their food, as a kind of proxy for decision-making more generally.  How well they treat the server would be another variable of interest.

As for the second question, I suggest asking the person who he or she thinks are the rational people.  If the answer is considered and uncertain and complex, upgrade the rationality of that person.  If the answer is dogmatic and refers to holding a particular doctrine…

I considered asking the person if he is himself rational, but that simply will induce lying and false modesty.

Can you think of better tests?

Could Women Be Trusted With Their Own Pregnancy Tests?

The first home pregnancy tests were controversial because it was believed that women could not be trusted to do the tests correctly or to use the results appropriately:

NYTimes: When a mail-order New York firm tried to sell Organon test kits to American consumers in 1971, it faced opposition from the United States Public Health Service. In 1973, a New Jersey drugstore bought kits made by the drug company Roche and offered fast and private tests to their customers, and though the technology was similar to that available in medical clinics, the state medical examiner questioned the legality of the service.

Why so much opposition? Some regulators worried that “frightened 13-year-olds” would be the main users of the test kits. But after the product did become available in the United States in 1977, it appealed instead to college-age and married women — many of whom desperately hoped for children.

Even so, the Texas Medical Association warned that women who used a home test might neglect prenatal care. An article in this newspaper in 1978 quoted a doctor who said customers “have a hard time following even relatively simple instructions,” and questioned their ability to accurately administer home tests. The next year, an article in The Indiana Evening Gazette in Pennsylvania made almost the same claim: Women use the products “in a state of emotional anxiety” that prevents them from following “the simplest instructions.”

The tale of the home pregnancy test is not unique. Breakthroughs that give patients control over their bodies are often resisted. Again and again, the same questions come up: Are patients smart enough? Can they handle bad news? And do they have the right to private information about their bodies?

I wrote about these issues in Our DNA, Our Selves which discussed the FDA’s unconstitutional over-regulation of DNA tests. The legal questions in that case are yet to be fully resolved but the technology is pushing towards the freedom to know our own bodies.

Two misunderstood movies, two Rorschach tests (not too many spoilers here)

American Sniper is one of the best anti-war movies I have seen, ever.  But it shows the sniper-assassin, and his killing, to be sexy, and to be regarded as sexy by women, while the rest of war is dull and stupid.  (Even the two enemy snipers are quite attractive and fantastic figures, and there is a deliberate parallel between the family life of the Syrian sniper and the American protagonist.  The klutziness of the non-assassin soldiers limited how many African-Americans and Hispanics they were willing to cast in those roles, as it is easiest to make white guys look crass in this way without causing offense.)  By making the attractions of war palpable, this film disturbs and confuses people and also occasions some of the worst critical reviews I have read.  It also, by understanding and then dissecting the attractions of blood lust, becomes a quite convincing anti-war movie, if you doubt this spend a few months studying The Iliad.  (By the way, Clint Eastwood, the director and producer, describes the movie as anti-war.)  The murder scenes create an almost unbearable tension, the sandstorm is a metaphor for our collective fog, and they had the stones to opt for the emotional overkill of four rather than just three tours of duty.  Iraq is presented as a hopeless wasteland with nothing of value or relevance to the United States, and at the end of the story America proves its own worst enemy.  It is not clear who ever gets over having killed and fought in a war (can anything else be so gripping?…neither family life nor sex…), even when appearances suggest a kind of normality has returned.  The generational cycle is in any case replenished.  I say A or A+, both as a movie and as a Rorschach test.

Two Days, One Night has some of the worst economics I have seen in a movie, ever.  It would be brilliant as a kind of Randian (or for that matter Keynesian) meta-critique of the screwed up nature of Belgian labor markets and social norms, and most of all a critique of the inability of the Belgian intelligentsia to understand this, except it is not.  It is meant as a straight-up plea for sympathy for the victim and as such it fails miserably, even though as a movie it embodies reasonably good production values.  Everything in the workplace of this solar power company is zero-sum across the workers and we never see why.  The protagonist campaigns to get her job back, but never asks or even considers how she might improve her productivity or attitude, asking only on the basis of need.  (And she is turned down only on the basis of need.)  At one point her employer states the zero marginal product hypothesis quite precisely, something like “when you took time off, we saw that sixteen people could do the work of seventeen.”  She never asks if there might be some other way she could contribute — but she does need the money — nor does the notion of a better job match somewhere else rear its head.  The depictions of financial hardship confuse wealth and income, basic survival and discretionary spending.  The rave reviews this movie has received represent yet another Rorschach test and one which virtually every commentator seems to have failed.

The growth of on-line tests in assessment (average is over)

This continues to be a growing trend:

T-Mobile asks job applicants to take this [problem-solving, for a customer] test before inviting them for an interview because the company has found powerful correlations between the online assessments and success on the job. High scorers tend to resolve customer calls about 25 seconds faster than those who receive low scores. That means they can handle one more call a day and about 250 more a year.

More generally:

Companies are using these tests to evaluate skills and personalities for job openings at every rung of the career ladder, from bank teller to C-suite executive. They are not merely on-screen versions of decades-old paper employment tests. They are built on the power of big data: Creators have harnessed a massive trove of results to help companies pinpoint the kind of worker who might thrive in a particular job.

The legion of tests is only growing:

Some tests evaluate a specific skill, such as how quickly and accurately someone can make change from an onscreen cash register or program software in the Java coding language. Many tests incorporate simulations of scenarios one might encounter on the job. Marriott International, for example, shows housekeeping applicants a photo of a landscaped area at one of its hotels and asks candidates to determine what’s wrong with it. (Perhaps a gardening tool was not put away properly). In one of CEB’s tests for a supervisory role, applicants might have to demonstrate how they would talk to an employee who was coming in late and missing important meetings.

We are entering a new “meritocracy,” at least for people who test well, especially on-line:

Providers say the tests hold the promise of leveling the playing field for job applicants by removing the chance of bias that comes with a traditional résumé screening. The tests can’t distinguish, for example, if a candidate didn’t attend a top-tier college, is currently unemployed or is a woman or minority.

“In many cases, algorithms can trump instinct on staffing,” said John Boudreau, a professor in the business school at the University of Southern California, adding that decades of research have found that tests can serve as reliable barometers of certain personality traits, such as conscientiousness.

The full story, by Sarah Halzack, is here.

Markets in everything, positive pregnancy tests

The latest, uh, must-have appears to be positive pregnancy test results.

Women across the country are selling — and buying — them on Craigslist.

One post from Buffalo, New York, sums up the appeal for potential shoppers:

“Wanna get your boyfriend to finally pop the question? Play a trick on Mom, Dad or one of your friends? I really don’t care what you use it for.”

That particular test was going for the reasonable rate of $25 dollars. The tests in Texas seem to be slightly more expensive, at $30 a pop.

There is more here, via Marcela Veselková.

Increased aggression during human group contests when competitive ability is more similar

From Stulp G, Kordsmeyer T, Buunk AP, Verhulst S.:

Theoretical analyses and empirical studies have revealed that conflict escalation is more likely when individuals are more similar in resource-holding potential (RHP). Conflicts can also occur between groups, but it is unknown whether conflicts also escalate more when groups are more similar in RHP. We tested this hypothesis in humans, using data from two professional sports competitions: football (the Bundesliga, the German first division of football) and basketball (the NBA, the North American National Basketball Association). We defined RHP based on the league ranks of the teams involved in the competition (i.e. their competitive ability) and measured conflict escalation by the number of fouls committed. We found that in both sports the number of fouls committed increased when the difference in RHP was smaller. Thus, we provide what is to our best knowledge the first evidence that, as in conflicts between individuals, conflicts escalate more when groups are more similar in RHP.

The paper is here, hat tip goes to Neuroskeptic.  One hypothesis is behavioral.  The other hypothesis is more directly microeconomic.  Perhaps fouling has positive expected returns within the context of the game, but costs a player long-term reputation, risks long-term retaliation, and so on, and thus the aggression is deployed more in the really important situations.

Should we renorm IQ tests?

The year in which IQ is tested can make the difference between life and death for a death row inmate. It also can determine the eligibility of children for special services, adults’ Social Security benefits and recruits’ suitability for certain military careers, according to a new study by Cornell University researchers.

That’s because IQ scores tend to rise 5 to 25 points in a single generation. This so-called “Flynn effect” is corrected by toughening up the test every 15 to 20 years to reset the mean score to 100. A score from a test taken at the end of one cycle can vary widely from a score derived from a test taken at the beginning of the next cycle, when the test is more difficult, says Stephen J. Ceci, professor of human development at Cornell.

In other words, our definitions of intelligence and mental retardation are more relativistic than we would like to think. Yet the law, and various institutional categories, look to IQ scores as if they were fully objective. Here is the full story.

The Flynn effect implies, if you take it literally, that most people were morons as recently as a few generations ago. Just think, “someone who scored among the best 10% a hundred years ago, would nowadays be categorized among the 5% weakest. That means that someone who would be considered bright a century ago, should now be considered a moron!” So much as I believe in the idea of progress, I don’t think we can take the numbers at face value. If you are not convinced, try reading David Hume. Here is another survey of hypotheses, and why they fail to explain the data.

We’re past the point where nutrition can explain the rise in IQ scores, and more generally the Flynn effect numbers are inconsistent with more general data about the limits on environment for improving IQ scores. The less culturally specific the test, the stronger the Flynn effect appears. Bill Dickens and Flynn offer some interesting evidence on how genes and environment interact.

My favorite hypothesis, which has no hard data to support it, cites “the impact of the visual and spatial demands that accompany a television-laden, video-game-rich world. ” In other words, TV helps us do well on IQ tests. This does not explain why the Flynn effect predates 1950, but perhaps the more general increase in world complexity forces our brains to adapt. In earlier times people were “smart enough” for their environments, and still could create brilliant achievements on the frontiers they faced, still they might have been ill-suited to live in modern times.

The Promising Pathway Act

Operation Warp Speed showed that we can move much faster. FDA delay in approving rapid tests shows that we should move much faster. There is a window of opportunity for reform. The excellent Bart Madden and Siri Terjesen argue for the Promising Pathways Act.

One particularly exciting development is the Promising Pathway Act (PPA), recently introduced in Congress. PPA would reduce bureaucracy via legal changes and provide individuals with efficient early access to potential new drugs.

Under PPA, new drugs will receive provisional approval five to seven years earlier than the status quo via a two-year provisional approval. Drugs that demonstrate patient benefits could be renewed for a maximum of six years, and the FDA could grant full approval at any time based on real-world as opposed to clinical trial data documenting favorable treatments results.

The PPA allows patients, advised by their doctors, to choose early access to promising but not-yet-FDA -approved drugs. Patients and doctors would make informed decisions about using either approved or new medicines that demonstrate safety and initial effectiveness compared to approved drugs.

…Patients and doctors can log into an internet registry database for early access drugs that would contain treatment outcomes, side effects, genetic data, and biomarkers. Scientific researchers, as well as patients, will also benefit from the identification of subgroups of patients who do exceptionally well or fail to respond.

Data from the registry will open knowledge pathways to improve the biopharmaceutical industry’s research outlays to benefit future patients.

With radically lower regulatory costs plus heightened competition as more companies participate, expect substantially lower prescription drug prices for provisional approval drugs.

Here is the text of the PPA.

FDA Approves American Rapid Antigen Test

I wrote earlier:

What makes the FDAs failure to approve more rapid antigen tests even more galling is that the test being sold cheaply in the Amsterdam supermarket is the Flowflex, an American test made by Acon Labs in San Diego.

Well the FDA has finally approved the Acon test! Apparently it is good enough for the Germans and for US citizens. Hoorah! USA Today notes:

ACON expects to make 100 million tests per month by the end of this year. Production could double to 200 million monthly tests by February, according to the FDA.

…The United Kingdom and Germany have made significant purchases of home tests and widely distributed them to their residents to slow the spread of coronavirus. Such large government purchases allowed manufacturers to continue making tests even when demand softened as cases dropped.

The Biden administration will spend nearly $1.2 billion to purchase up to 187 million home tests from Abbott Laboratories and Celltrion Inc., company officials confirmed. The Department of Defense announced additional contracts totaling $647 million to buy 60 million kits from Abbott and three other testing vendors: OraSure Technologies, Quidel and Intrivio Holdings.

The FDA has authorized seven antigen-based tests that can be used at home without a prescription. The EU has authorized 21 tests beginning with the letter A (I am not sure all of these are authorized for home use but you get the idea.) Turtle slow. Still this is a big improvement.

Frankly, I think all the pressure from people like Michael Mina amplified by myself and others over 18 months and culminating in David Leonhartd’s NYTimes article Where Are the Tests? finally pushed them over the edge.

Saloons of Invention

I was taken aback by the bottom line of Mike Andrews new working paper Bar Talk: closing the saloons during prohibition reduced patenting by ~15%. At first, I thought that seemed like a very large decline but bear in mind that saloons were the coffeehouses of the day devoted not just to drinking but to meeting, talking and learning. Indeed, they were much more common than coffeehouses today:

Saloons were once everywhere in America, from urban alleys to rural crossroads. They were about more than drinking; from the 1860s through 1920, they dominated social life for the laboring majority building a new industrial nation. By 1897 there were roughly a quarter of a million saloons, or 23 for every Starbucks franchise today.

…Saloons became salons, where survivors of the Industrial Revolution could drink and debate, politick and speechify.

The saloons also often combined social aspects with a mailbox depot, telegraph or telephone, and a payday lender so they were good places to talk shop.

Andrew’s compares countries that were forced dry by state prohibition laws with previously dry counties, so the estimates are local and from across the country. He has significant patent data including the location of inventors and a variety of important robustness tests. Women, for example, didn’t typically patronize the saloons but also continued to patent at similar rates in wet and dry counties. After taking it all in the results are large but plausible! Here’s the abstract to the paper:

To understand the importance of informal social interactions for invention, I examine a massive and involuntary disruption of informal social networks from U.S. history: alcohol prohibition. The enactment of state-level prohibition laws differentially treated counties depending on whether those counties were wet or dry prior to prohibition. After the imposition of state-level prohibition, previously wet counties had 8-18% fewer patents per year relative to consistently dry counties. The effect was largest in the first three years after the imposition of prohibition and rebounds thereafter. The effect was smaller for groups that were less likely to frequent saloons, namely women and particular ethnic groups. Next, I use the imposition of prohibition to document the sensitivity of collaboration patterns to shocks to the informal social network. As individuals rebuilt their networks following prohibition, they connected with new individuals and patented in new technology classes. Thus, while prohibition had only a temporary effect on the rate of invention, it had a lasting effect on the direction of inventive activity. Finally, I exploit the imposition of prohibition to show that informal and formal interactions are complements in the invention production function.

Scott Gottlieb’s Uncontrolled Spread

Scott Gottlieb’s Uncontrolled Spread is superb. I reviewed it for the WSJ. Here’s one bit:

If there’s one overarching theme of “Uncontrolled Spread,” it’s that the Centers for Disease Control and Prevention failed utterly. It’s now well known that the CDC didn’t follow standard operating procedures in its own labs, resulting in contamination and a complete botch of its original SARS-CoV-2 test. The agency’s failure put us weeks behind and took the South Korea option of suppressing the virus off the table. But the blunder was much deeper and more systematic than a botched test. The CDC never had a plan for widespread testing, which in any scenario could only be achieved by bringing in the big, private labs.

Instead of working with the commercial labs, the CDC went out of its way to impede them from developing and deploying their own tests. The CDC wouldn’t share its virus samples with commercial labs, slowing down test development. “The agency didn’t view it as a part of its mission to assist these labs.” Dr. Gottlieb writes. As a result, “It would be weeks before commercial manufacturers could get access to the samples they needed, and they’d mostly have to go around the CDC. One large commercial lab would obtain samples from a subsidiary in South Korea.”

At times the CDC seemed more interested in its own “intellectual property” than in saving lives. In a jaw-dropping section, Dr. Gottlieb writes that “companies seeking to make the test kits described extended negotiations with the CDC that stretched for weeks as the agency made sure that the contracts protected its inventions.” When every day of delay could mean thousands of lives lost down the line, the CDC was dickering over test royalties.

In the early months of the pandemic the CDC impeded private firms from developing their own tests and demanded that all testing be run through its labs even as its own test failed miserably and its own labs had no hope of scaling up to deal with the levels of testing needed. Moreover, the author notes, because its own labs couldn’t scale, the CDC played down the necessity of widespread testing and took “deliberate steps to enforce guidelines that would make sure it didn’t receive more samples than its single lab could handle.”

Read the whole thing.

Addendum: My previous reviews of Michael Lewis’s The Premonition, Slavitt’s Preventable and Abutaleb and Paletta’s Nightmare Scenario.

Why the defenses of Australia do not persuade me

Alex laid out some complaints about Covid policy down under, I have been receiving emails and tweets arguing the following:

1. Australia is choosing a perfectly acceptable point on the liberty vs. safety frontier.

2. The Australian decision to do extreme lockdowns is democratic, and most Australians support it.

And sometimes I see a third point, which as far as I can tell is true:

3. Australia doesn’t have much in the way of ICU excess capacity, so a Covid surge would hit the country especially hard.

I think those responses, however, are missing the point of the critique.  I would stress that if Covid risk has you with your back against the wall and the government is forcing extremely restrictive measures on your citizenry, you should be implementing the following in an urgent manner:

a. Twice a week rapid antigen tests for everyone.  (Plenty of time to prep for this one.)

b. Much stronger incentives to vaccinate people more rapidly, including with the large stock (six million or so?) of AstraZeneca vaccines.  Demand side incentives, supply side incentives, whatever can be done.  Let’s throw the kitchen sink at this one.  But as it stands, I just don’t see the urgency.

c. Mobile monoclonal antibody units, as they are used in Florida (modest progress here).

d. Maybe other emergency measures too?  I’ve been hearing for decades that Australia has such a great health care system so surely they can make lots of progress on these and other fronts?

As far as I can tell from this great distance, Australia is doing none of these.  And, while there is some disquiet about lockdowns, few of its citizens are demanding that they do any of those positive measures.  Not many of its well-known politicians are proposing those ideas either.  (Please feel free to correct me if that is wrong!…but I just don’t see word of it on-line.)

If Australia implemented all of those policies, or even just one of them, they could attain a much better “liberty vs. lives” frontier, no matter where you think the government should end up on that frontier.  They could save lives, and enjoy more liberty.

And that is the great shame and indeed I would say crime.  There seems to be an incredible complacency that people in some parts of the country will put up with the current measures and not demand the government look for more practical measures to boost both liberty and security.

So when you write me and suggest “this is democratic and the people approve,” yes that is exactly the problem.

My Conversation with Zeynep Tufekci

Here is the audio and transcript.  Here is part of the summary:

Zeynep joined Tyler to discuss problems with the media and the scientific establishment, what made the lab-leak hypothesis unacceptable to talk about, how her background in sociology was key to getting so many things right about the pandemic, the pitfalls of academic contrarianism, what Max Weber understood about public health crises, the underrated aspects of Kemel Mustapha’s regime, how Game of Thrones interested her as a sociologist (until the final season), what Americans get wrong about Turkey, why internet-fueled movements like the Gezi protests fizzle out, whether Islamic fundamentalism is on the rise in Turkey, how she’d try to persuade a COVID-19 vaccine skeptic, whether public health authorities should ever lie for the greater good, why she thinks America is actually less racist than Europe, how her background as a programmer affects her work as a sociologist, the subject of her next book, and more.

Here is one excerpt:

COWEN: Max Weber — overrated or underrated as a sociologist?

TUFEKCI: Underrated.


TUFEKCI: Part of the reason he’s underrated is because he writes in that very hard-to-read early 19th-century writing, but if you read Max Weber, 90 percent of what you want to understand about the current public health crisis is there in his sociology. Not just him, but sociology organizations and how that works. He’s good at that. I would say underrated, partly because it’s very hard to read. It’s like Shakespeare. You need the modern English version, conceptually, for more people to read it.

I would say almost all of sociology is underrated in how dramatically useful it is. Just ask me any time. Early on, I knew we were going to have a pandemic, completely based on sociology of the moment in early January, before I knew anything about the virus because they weren’t telling us, but you could just use sociological concepts to put things together. Max Weber is great at most of them and underrated.

COWEN: Kemal Mustafa — overrated or underrated?

TUFEKCI: Underrated.


TUFEKCI: Why? My grandmother — she was 12 or 13 when she was in the Mediterranean region — Central Asia, but Mediterranean region, very close to the Mediterranean. She was born the year the Turkish Republic had been founded, 1923, and she was 13 or so. She was just about to be married off, but the republic was a little over a decade — same age as her. They created a national exam to pick talented girls like her. The ones that won the exam got taken to Istanbul to this elite, one of the very few boarding high schools for girls.

The underrated part isn’t just that such a mechanism existed. The underrated part is that the country changed so much in 13 years that her teacher was able to prevail upon the family to let her go. To have a 13-year-old be sent off to Istanbul, completely opposite side of the country, to a boarding school for education — that kind of flourishing of liberation.

I’m not going to deny it was an authoritarian period, and minorities, like Kurds, during that period were brutally suppressed. I can’t make it sound like there was nothing else going on, but in terms of creating a republic out of the ashes of a crumbling empire — I think it’s one of the very striking stories of national transformation, globally, within one generation, so underrated.

There are numerous interesting segments, on varied topics, to be found throughout the dialog.