The Bell Curve

This article is about a book. For the statistical concept, see Gaussian distribution.

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“”Publishers, forget about carefully reasoned, nuanced discussions of the issues of the day—that stuff is for college professors...you want to make the big bucks, you need to think like a boxing promoter and stage fights that will get attention. And nothing, but nothing, draws hype like a match-up between liberal pundits and the man they love to hate, the belligerent behind the The Bell Curve, the warrior against welfare, the proudly politically incorrect Charles Murray.

—Peter Schmidt

“”The egalitarian ideal of contemporary political theory underestimates the importance of the differences that separate human beings. It has become objectionable to say that some people are superior to other people in any way that is relevant to life in society … Discrimination, once a useful word with a praiseworthy meaning, is now almost always used in a pejorative sense.

—The Bell Curve

The Bell Curve (ISBN 9780029146736) is a highly controversial 1994 book by Richard Herrnstein and Charles Murray. It purports to show that intelligence is dispositive in the trajectory of each person's life, and that can be used to predict such things as socioeconomic status and tendencies toward criminal behavior.

Much of the research in The Bell Curve is not disputed, but the conclusions drawn from it (low IQ is to blame for the underclass) are frequently cited by eugenics and white nationalist movements. Their work bubbled up in 2014 after Representative Paul Ryan applauded Murray’s work in his speech about “inner cities.”

Murray is listed as a scholar for the American Enterprise Institute, which is sponsored by the Kochs. Murray is essentially a right-leaning libertarian who argues that innate individual differences help explain economic inequality. Also, to describe how sociologically ignorant he himself was as a teenager, Murray said that he as a teenager didn't recognize any racial implications when he and his friends burned a cross.

The "cognitive elite"

Drawing on author Murray's background in political science and on Herrnstein's background in psychology, the book cites such factors as crime rates, teen pregnancy, and income to explain what they call the "cognitive elite." These claims are suspect. Many experts argue that the correlation between low performance on IQ tests and poverty is indeed causal, but it's poverty that explains low IQ, not the other way around. The book was also criticized for its selective use of research on education.

According to the authors, the heritability of IQ is about 60%. This constitutes one of the foundations of their argument that society is becoming more stratified by intelligence and the "cognitive elite" is separating itself from the rest of society's rabble through (self-)selective breeding. In his review, philosopher Ned Block noted that Herrnstein and Murray conflated genetic determination with heritability. He also demonstrates that differences in a trait that is 100% heritable within a group may not be at all heritable between groups. Recent advances in genome wide association studies have begun to discover some genetic basis for educational attainment and cognitive ability.

The public furor over the book prompted the American Psychological Association to assemble a task force on the validity of intelligence testing. The APA reaffirmed the basic usefulness of IQ testing, but noted several shortcomings in the way Herrnstein and Murray used it. One issue the APA review notes with using IQ testing is the "Flynn effect", in which IQ scores were found to have been rising over the 20th century by psychologist James Flynn. This is a rather ironic criticism, as The Bell Curve actually coined the term "Flynn effect", though the authors claim that the effect merely represented rising IQ scores but not an increase in general intelligence ("g") and that the "real" average IQ of the American population was declining. One wonders that having refuted the sole means of measuring IQ, what exactly is Murray basing his claims on? At any rate, the fact is that the nature and cause(s) of the Flynn effect are still unknown and debated to this day.

Further tests of verbal ability have also challenged the book on this front in terms of its claims of increased "cognitive sorting." In addition, the claims of "cognitive sorting" often commit one of the basic fallacies of eugenics: conflating genotype and phenotype. The overarching thesis concerning the "cognitive elite" boils down to their deep concern that the smarties are being out-bred by the idiots. This was a perpetual claim of the eugenicists of the 19th and 20th centuries, most famously summed up in Cyril Kornbluth's short story "The Marching Morons" and recycled in the movie Idiocracy.

Murray would later revisit this foreseen fate — a division between the elite and the rest — in his 2010 Coming Apart: The State of White America, which argues that a vast cultural gap has appeared between wealthy and lower-class Caucasians, deriving in no small part from these groups' respective genetic inheritances.

Race and innate intelligence

See the main article on this topic: Racialism

“” Chocolate rain, The bell curve blames the baby's DNA Chocolate Rain, But test scores are how much the parents make

—Tay Zonday

Far more crankish, though, was The Bell Curve's further conclusion in the third and fourth parts of the book that innate intelligence plays an important role in the different socioeconomic statuses of differing ethnic groups in the United States. Arguing that intelligence is inherited in large part, and that the average intelligence of different ethnic groups can thus be assessed, the book then concludes that different ethnic groups have varying levels of intelligence, and certain groups are poor or unfortunate mainly because they are not as smart as others. (Many early, knee-jerk criticisms in the media latched onto this point without addressing the rest of the book.)

Further compounding the errors made earlier on, this section of the book rather clearly hearkened back to the long tradition of "scientific racism." Herrnstein and Murray here rely on the biologically invalid concept of race, building on their already shaky neo-eugenic foundation of the "cognitive elite." A Fairness and Accuracy in Reporting (FAIR) review noted:

“”Anyone who flipped through the footnotes and bibliography of Murray and Herrnstein's book could see that there was something screwy about their sources. And there is hardly a proposition in their book that had not been thoroughly debunked more than a decade ago by Stephen Jay Gould's classic work on the pseudoscience behind eugenics, The Mismeasure of Man.

A good deal of research cited in this section of the book was found to have been funded in part by the Pioneer Fund, which was infamous for its advocacy of eugenics. There's really no subtlety to this. Notably, one of the sources cited favorably multiple times was J. Philippe Rushton, a crank psychologist who claimed "Mongoloids" were the more intelligent "race" (followed by the "Caucasoids" and then the "Negroids") and believed penis size to be inversely correlated with intelligence. The Bell Curve's conclusions on race and intelligence has been debunked by prominent behavioral scientists.

Welfare

Herrnstein and Murray advocated for replacing the welfare state with cash supplements. Cash supplements are a form of welfare; the only difference is that cash supplements are a form of welfare to help people get off welfare. Cash supplements are effective in aiding long-term welfare recipients to the path to employment when cash supplements work together with welfare payments to reduce inequality. There is no evidence that completely replacing the welfare state with cash supplements actually works. In his later years, Murray seems to have gone to the left on welfare policy. He wrote a book advocating for the replacement of the welfare state with a guaranteed income of $10,000 a year for every American and financing it by raising taxes on Americans who make more than $25,000 per-year. He got blasted by The Atlantic for his plan making no fiscal sense.

Murray argues that welfare cannot be effective in reducing inequality as these "welfare mothers" IQ were too low. He further argues that welfare state allows these low-IQ women to game the system as they are not able to get a job as they are too dumb. This is incorrect as a person's IQ is based on socioeconomic status, not the inverse. Improving intelligence of the general population is easy. The research showing that simple free public education vastly increases intelligence is quickly dismissed as flawed in the book. It's also rather odd that Murray thinks women who are "too dumb to get a job" are simultaneously smart enough to "game the system".

Herrnstein and Murray's interception of the data is skewed to fit into an American conservative viewpoint.

Influence

Despite frequent and harsh criticism by academics, in some venues The Bell Curve has proven disturbingly influential. The ongoing strength of its lines of argument has continued up to the present day, particularly during such contentious public discussions as the American debate over illegal immigration from Mexico. Heritage Foundation analyst Jason Richwine, notable for co-authoring that organization's report on why illegal immigrants would feast on the blood of white babies, made headlines in 2013 after it was discovered that his 2009 Harvard doctoral dissertation argued that persistent differences in IQ among Hispanics suggest that IQ tests should serve as a barrier to immigration. Richwine cites Murray in the dissertation, stating that “no one was more influential than Charles Murray.”

Richwine shouldn't be condemned for his work (though we should be questioning the rigor of his defense panel) — even reprehensible thought experiments have their place in serious academic discussions — but he is only one of many who continue to champion the message of The Bell Curve, nearly twenty years later.

Sequel?

Murray's self-promotion with Coming Apart: The State of White America has been successful in re-framing his arguments. He intentionally focused on the white working class in order to avoid racial controversy, so instead of bashing poor people of all races, he only bashes poor whites and the cognitive elite who are failing to spread their genes and bourgeois values. Of course this is just another retread of a subject matter that was discussed even back in the 1800s, and Murray's book unsurprisingly aligns with the Victorian idea that the poor are just inferior. This worked perfectly and the pundits ate it up, even though it's the same basic ideas from The Bell Curve but with the race parts scrubbed out.

In a 2 hour hand-holding and praise-fest, Sam Harris went completely out of his way to extol Murray as a principled victim of "academic injustice", ignoring the actual details of Murray's work. In short, Harris and ilk are using Murray as a weapon. They claim the left is ignoring the substance of his ideas, but Murray is not objected to because he's vaguely "conservative" in some way. He's a pretend sociologist peddling turn-of-the-century dysgenic paranoia, updated for the turn-of-the-21st freeze peach warriors.

Useless nerd trivia

The 977 page rulebook for the infamously racist (duh), misogynistic, homophobic, ableist, and overall unplayable "adult" fantasy medieval role-playing game, F.A.T.A.L. (2002) cites The Bell Curve in its bibliography, along with non-peer reviewed works on physiognomy, cognitive differences between sexes, and other discredited quackery.

See also

• Blame the victim
• Hume's law
• Post hoc ergo propter hoc
• Richard Lynn — His shoddy research was used in the book.
• Self-fulfilling prophecy
• Social Darwinism

External links

• Collection of Debunkings of The Bell Curve
• Slate: The Bell Curve Flattened,The Bell Curve Revisited
• The Bell Curve review, Human Intelligence Project, Indiana University
• The Pseudoscience of Psychometry and The Bell Curve, Joseph L. Graves
• Clark Glymour. What Went Wrong? Reflections on Science by Observation and The Bell Curve. Philosophy of Science, Vol. 65, No. 1 (Mar. 1998), 1-32.
• The Skewed Logic of the Bell Shaped Curve Skeptic Magazine
• The Bell Curve by Shaun (2:39:45)

References

• The Bell Curve Wars, ed. Steven Fraser
• Intelligence, Genes, and Success: Scientists Respond to the Bell Curve, ed. Bernie Devlin