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Lower IQ causes crime – proof of why blacks commit more crime (yes, they have low IQ levels)


IQ and Crime in the US Redux

Robert Lindsay – 9/10/2007

This is follow-up to an earlier post – Black Crime and Intelligence – An Intrepid Investigation. No matter how much Leftists and liberals deny it, there are clear differences in racial crime rates in the US. US Hispanics and Blacks have higher crime rates than Whites in the US in the same way that Asians have lower rates. It is neither controversial nor racist to report on this observable fact.

The usual Left explanation for elevated Hispanic and Black crime rates is poverty, lack of opportunity, unemployment, low rates of educational attainment, lack of government investment and poor schools in poor Black and Hispanic neighborhoods. The general rationale behind all of these is said to endemic White structural racism and discrimination against Blacks and Hispanics.

Another argument is that Blacks and Hispanics do not have elevated crime rates – it is only that racist police racially profile Blacks and Hispanics to stop and search them more often, resulting in higher arrest rates, while Whites who are just as criminal are let off the hook.

These appealing arguments are becoming harder and harder to sustain in the face of new evidence and rapidly decreasing White racism in US society, combined with harsh penalties, social, occupational and monetary, against Whites who discriminate against non-Whites, continuing affirmative action programs, judicial mandates for ethnically diverse schools and workforces, etc.

All of this has resulted in a White population whose recent thinking has been molded by anti-racist discourse and who consciously try to overt overt anti-White discrimination and even bigotry most of the time. This is actually a good thing. The judicial system should be fair with regard to suspects and arrestees.

One problem in getting a handle on racial differences in crime rates is that it has been very difficult to find good ethnic breakdowns of US crime rates, mostly because law enforcement agencies usually refuse to count Hispanic offenders at all or in any rational way.

The Color of Crime, a report by the frankly racist New Century Foundation, is nevertheless an excellent document that has managed to dredge up some good figures for Hispanic, American Indian and Hawaiian crime rates in the US.

It has been idiotically bashed all over the Left as “racist”. Here is a typical argument, this one from Wikipedia:

One New Century Foundation’s publication, The Color of Crime, makes various claims about the relationship between crime and race. The publication concludes that black people are more dangerous than white people, just as “young people are more dangerous than old people” and “men are more dangerous than women.” It claims that is logical to take precautions around black people.

The SPLC has led attacks against the report authored by the execrable Heidi Weiss, leader of an attack force against the fine scholar Kevin MacDonald. The attacks by Tim Wise on ZNet are quite sophisticated and deserve to be rebutted, perhaps in a separate post.

Bottom line is that Wise appears to be disputing what seems obvious to most any non-Leftist with a brain: Black people have a dramatically elevated crime rate, and one is more likely to be victimized by Blacks than by Whites, no matter what one’s race is.

Furthermore, Wise’s characterizing Jared Taylor as a “White Supremacist” is as problematic as calling 99% of US Jews “Jewish supremacists” based on their Zionism. How about “White Nationalist”? And it is grossly unfair of Wise to call Taylor a Nazi, especially since he renounces anti-Semitism. Wise is an anti-racist activist. I am an anti-racist too, but facts are facts.

Despite the fact that The Century Foundation authored the report, The Color of Crime is excellent, and attacks on the report do not do it service. Those opposed to the report are asked to logically rebut every one of its arguments or hold their tongues. The best figures are towards the middle of the report. Of most interest are the overall Hispanic and Black crime rates.

The Black crime rate is 7.4 times the White rate, the Hispanics 2.9 times the White rate and Indians and Hawaiians are about 2 times the White rate. From another study, Masking the Divide, by the National Center on Institutions and Alternatives, the figures are a bit different: the Black crime rate is 9.1 times the White crime rate and the Hispanic crime rate is 3.7 times the White crime rate.

The Color of Crime found that poverty, unemployment and lack of education add little to the Black and Hispanic crime rates – that is, when Whites, Blacks and Hispanics all live in poverty, have the same low educational variables and the same unemployment rates, the differential remains the same.

The report also pretty effectively deals with familiar complaints from the Left that the Black crime rate is so high because police selectively target Blacks for arrest while ignoring White criminals. A careful examination of the data in the report, shows that, actually, looking at the whole picture, if anything, the system is somewhat prejudiced in favor of Blacks and against Whites. There is a suggestion that Blacks are actually underrepresented, and Whites, overrepresented, in the nation’s prison population based on crime rates.

Prejudice and discrimination does not appear to be a significant factor in Black crime rates. Further, Blacks are much more likely to target Whites as crime victims than vice versa.

An incredible anecdote: In a 3-yr period in the US, there were 9,000 cases of group Black on White sexual assaults – about 10 per day. In that same 3-year period, Whites, with a 4.5 times greater population, committed exactly zero group sexual assaults on Blacks. That figure alone is simply stunning.

The Left loves to talk about hate crimes, but the only hate crimes they are interested in are White hate crimes against non-Whites. The report makes it quite clear that Blacks are much more likely to commit hate crimes against Whites than vice versa.

What is fascinating is that the media plays up White on Black hate crimes for weeks on end as the crime of the century, while Black on White hate crimes are met with deafening silence from the media. That right there would seem to give the lie to the notion that the US media is hopelessly prejudiced against Blacks and in favor of Whites. If anything, the opposite seems to be the case.

I have no idea why Whites are so much less likely to commit crimes than Blacks or Hispanics, or even why the lesser differential between Whites and Amerindians/Hawaiians exists, nor why Asians commit crimes at dramatically lower rates than Whites. Some will talk about genes and others about culture.

Lining up IQ with crime rates seems entirely logical to me. Groups with lower average IQ’s should commit more crimes than those with higher IQ’s on an ascending linear scale.

Unfortunately, the results do not pan out very well. Let us look at some racial IQ scores followed by racial crime rates in the US:

IQ scores:

East Asians:1    101 (link)
Whites:          99 (link)
Hispanics:       89-92 (90.5 average)2
American Indians 86 (link)
Blacks           85 (link)
Hawaiians        85 (link, link and link).


Crime rates:

Asians:       78% lower than Whites (!)
Whites:       Baseline
Amerindians:  100% higher than Whites
Hawaiians:    100% higher than Whites
Hispanics:    230% higher than Whites
Blacks:       750% higher than Whites (!)

The racial IQ scores and racial crime rates do not line up very well; there are some correlations, but there are also some problems. The small difference between East Asian and White IQ’s in the US would not seem adequate to explain an Asian crime rate that is a mere 22% of the White average.

The Hispanic crime rate is 45-85% higher than the Amerindian and Hawaiian crime rates, yet Hispanics have significantly higher IQ’s than both groups. The Black crime rate is an incredible 270-305% higher than the Amerindian and Hawaiian crime rates, despite the fact that all three groups have the same IQ’s.

In these cases, there is absolutely no correlation whatsoever between IQ and crime. There is a modest correlation between crime and IQ between Whites, Blacks and Hispanics, but the differences are completely out of sync with what we would expect merely based on IQ.

In particular, the Black and Hispanic crime rates are far higher than expected by IQ compared to Whites (especially looking at the Hawaiian and Amerindian figures), and the Black crime rate that is 2.5 times higher than the Hispanic rate is dramatically higher than expected by IQ compared with Hispanics.

Furthermore, we can completely rule out IQ-crime links in Hispanic mestizos. How is it that Amerindians have a crime rate of 2 times that of Whites, yet White-Amerindian mixed race people (Mestizos with an average of only 1/3 Indian blood and probably a good amount of heterosis) have a crime rate of 3.3 times that of Whites? That makes no sense whatsoever.

One would expect White-Amerindian mixed-race US Mestizos to have a crime rate median between Whites and Amerindians and probably closer to Whites, say 1.35 times the White rate, considering that Mexicans and Chicanos in the US are about 63% White on average.

Also, from 1960-1995, the Flynn Effect has been causing steadily increasing IQ’s in Americans of all ages and ethnic groups3. During this period, the US population increased its IQ by 9 points. At the same time, crime exploded from 1960-1980 and has continued at a very high level ever since.

How is it that a steadily rising US IQ has coincided with a skyrocketing crime rate?

The Flynn Effect has had its most noticeable effects at the lowest end of the IQ range – precisely the people that are most likely to commit crimes. Nevertheless, wild crime increases occurred in tandem with a progressive loss of those very people most likely to commit crimes – those with the very lowest IQ’s.

All of this seems to indicate that whatever in God’s name is causing racial differentials in US crime rates, IQ does not seem to play a huge role. Perhaps other biological factors could be involved, but that seems dubious.

For instance, there are recent suggestions that Polynesians (the study looked at Maoris) may be predisposed to violence due high rates of an a gene that codes for low levels of a component – MAO inhibitor – that breaks down neurotransmitters in the brain associated with violent and impulsive behavior.

With lower levels of the MAO inhibitor, Polynesians have higher levels of catecholamines that tend to cause violent and aggressive behaviors.

It is likely that Polynesians selected for aggression during their colonization of the Pacific Islands. Without an aggressive temperament, they may not have been able to undertake mad, near-suicidal journeys on boats to colonize those islands in the first place.

Once on the islands, South Sea Islanders, especially on Fiji and New Zealand, were continuously locked in the most horrible tribal warfare with most of their neighbors, in addition to having downright brutal and vicious societies of their own.

No evidence has yet been presented of a Black or Mestizo genetic propensity to violence. How is it then that the Hawaiian Polynesians, with their low rates of MAO-inhibition, have a dramatically lower crime rate than Blacks and Hispanics, who have no provable genetic links to crime?

Very well then. Having disposed of biological arguments, let us move along.

I am inclined to fall back on the old environmental standby – culture. Even if poverty, lack of education and unemployment have little to do with high Black and Hispanic crime rates and the role IQ is not dramatic either, there is yet another explanation:

There is a possibility that in recent years, both Blacks and Hispanics have developed an underclass culture that is simply criminogenic in and of itself. The hows and whys of the development of this underclass can be debated at length, but it’s existence seems uncontroversial, and whatever caused this sick culture, IQ or race itself do not seem to be at work.

See this website, Brown Pride, for an example of a depraved, wicked and amoral subculture operating in the Hispanic underclass.

This Black and Hispanic underclass contrasts with large numbers of Blacks and Hispanics who have “made it”, assimilated to proper US society, are employed and out of poverty, and have relatively low crime rates.

1The only data available for Asian IQ’s in the US are for East Asians. This group logically includes Koreans, Chinese, Japanese, Ainu, Taiwanese, Mongolians, Tibetans, Hmong, Mien and some smaller groups, but we do not know if all these groups were included. Studies in the US usually focus on the first three groups. It is quite difficult to draw a line showing where “East Asians” end and “Southeast Asians” begin.

2The 92 IQ figure for Hispanics is from The Bell Curve by Charles Murray and Richard Herrnstein, and the 89 figure is from Steve Sailer’s meta-analysis posted on his website.

3The Flynn Effect has been subjected to a lot of criticism, typically emanating from those White Nationalists who refuse to believe that anyone, especially the Blacks and Browns they dislike, is getting smarter. A number of arguments have been put forth, one of the most powerful of which is that the Flynn Effect does not show an increase in intelligence, but it just shows that people are getting better at taking tests.

Yet the Flynn Effect shows up as early as 7 years old. One wonders just how many rigorous tests the average 7 yr old has been subjected to?

Furthermore, in dismissing the Flynn Effect as simply measuring “some abstract test-taking ability”, these same detractors pour cold water on IQ tests themselves, the results of which they so cherish, as they show the delightful 10 and 15 point gaps between Whites and Browns and Blacks respectively. The consensus now is that test-taking skills cannot explain the Flynn Effect.

A very long (24 pp.) discussion about whether or not the Flynn Effect is valid and what it is measuring is here. The American Scientist also took a look at the subject in a much-quoted article. Another argument is that the Flynn Effect is having little effect on “g”, a hypothesized, supposedly heavily genetic or biological factor of purported pure, raw intelligence.

However, the Flynn Effect is greatest on the most heavily loaded g tests, and much less on the least g-loaded tests. Either “g” means nothing, or “g” is also increasing.

Steve Sailer wraps it up in a recent post, suggesting that people are definitely getting smarter, but only in certain ways.

  1. forgetting something
    March 21, 2012 at 10:58 pm

    You’re forgetting that the other main biological cause of crime is testosterone levels. Blacks have significantly higher testosterone levels and lowere IQs. This genetic cocktail causes criminal behaviour. They have the impulse to commit violence and rape and they are not smart enough to calculate why that is a bad idea. My question is why did they get this genetic setup? I guess it is probably what is most useful for hunting in Africa…

  2. Dave
    November 24, 2013 at 8:05 am

    My personal observation of general ( by no means all ) black behavior shows blacks to have limited self control. It appears that blacks are unable to inhibit themselves from acting upon impulses. Many people have initial impulses to take undesirable actions, but are inhibited prior to carrying through. Blacks can be given repeated warnings but are for some reason unable to incorporate that into their thinking. Search for impulse control to find the source of excessive rates of black crime.

  3. January 31, 2016 at 4:12 pm

    Here is a link to a Hypothesis on why people with lower IQ commit more crime. I noticed you stated that you don’t know why Whites cause so fewer crimes, but the data is clear that this is in fact the norm. This article postulates an answer to this question you couldn’t answer. https://www.psychologytoday.com/blog/the-scientific-fundamentalist/201006/why-criminals-are-less-intelligent-non-criminals

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