IQ of Serbian gypsies

[Tabiti]

To examine whether the Roma (Gypsy) population of Serbia, like other South Asian population groups, average lower than Europeans on g, the general factor of intelligence, we tested 323 16- to 66-year-olds (111 males; 212 females) in three different communities over a two-year-period on the Raven's Colored and/or Standard Progressive Matrices and four measures of executive function. Out of the total of 60 Matrices, the Roma solved an average of 29, placing them at the 3rd percentile on 1993 U.S. norms, yielding an IQ equivalent of 70. On the executive function tests, the Roma averaged at about the level of Serbian 10-year-olds. The Matrices showed a small mean sex difference favoring males. External validity was demonstrated by correlating the scores on Matrices with measures such as cranial capacity (r = 0.13, P < 0.01), spousal similarity (r = 0.17, P < 0.05), age at birth of first child (r = 0.26, P < 0.01), number of offspring (r = − 0.20, P < 0.01), and responsible social attitudes (r = 0.10, P < 0.05). Comparisons with extant data showed that items found difficult or easy by the Roma were those found difficult or easy by White, Indian, Colored, and Black South African 14- to 16-year-olds and by Black South African undergraduates (rs = 0.90). There was no evidence of any idiosyncratic cultural effect. Instead, Roma/non-Roma differences were found to be most pronounced on g. This was shown by item-total correlations (estimates of the item's g loading), which predicted the magnitude of Roma/non-Roma differences on those same items, regardless of from which sample the item-total correlations were calculated, and by confirmatory factor analysis. The results indicate the remarkable cross-cultural generalizability of item properties across South Asians, Europeans, and sub-Saharan Africans and that these reflect g more than culturally specific ways of thinking.

Note that Borderline retarded IQ is 70 - 75 points. World average is 90 - 109 (whites and asians), blacks have around 80 and gypsies - around 70!


The whole study here - http://psychology.uwo.ca/faculty/rushtonpdfs/2007%20intell%20(roma).pdf

[Vulpix]

Note that Borderline retarded IQ is 70 - 75 points. World average is 90 - 109 (whites and asians), blacks have around 80 and gypsies - around 70!

American blacks average 80 IQ points. African blacks average much lower, 10 or 15 IQ points lower.

[Tabiti]

American blacks average 80 IQ points. African blacks average much lower, 10 or 15 IQ points lower.
I'm sure that 10-15 point difference is linked with the environment - it is one to live in a city, surrounded by whites and other to try to survive in the savanna and full of violence and ignorance Africa villages/neighbourhoods.
Gypsies have always lived among humans, but seems their IQ is the same since stone age. Can we make the conclution gypsies are even duller than blacks?

[Vulpix]

I'm sure that 10-15 point difference is linked with the environment - it is one to live in a city, surrounded by whites and other to try to survive in the savanna and full of violence and ignorance Africa villages/neighbourhoods.

From what I've heard, the higher average IQ in American blacks is due to white admixture, and not to the environment.


Gypsies have always lived among humans, but seems their IQ is the same since stone age. Can we make the conclution gypsies are even duller than blacks?

It's possible yes :wink. And that's saying something :eek:...

[Tabiti]

From what I've heard, the higher average IQ in American blacks is due to white admixture, and not to the environment.



I think (and hope) not all born in slavery had white fathers!

[Eldritch]

As we all know, infant malnutrition is also rampant in Africa, which further lowers their already rock-bottom IQ's.

[Skandi]

As we all know, infant malnutrition is also rampant in Africa, which further lowers their already rock-bottom IQ's.

This probably has more of an effect than the genetics especialy where it occurs in pregnancy.

[Lenny]

placing them at the 3rd percentile on 1993 U.S. norms, yielding an IQ equivalent of 70

It's possible tjay a large portion of them were not willing test-takers.

Perhaps they were thinking at the time of how to best pick the pocket of the test-administrator, so weren't paying close attention:D.

[Stegura]

The whole study here - http://psychology.uwo.ca/faculty/rushtonpdfs/2007%20intell%20(roma).pdf

I wonder if Inquiring Mind was ever one of the test subjects! :cool:

[Mortimer]

I wonder if Inquiring Mind was ever one of the test subjects! :cool:

I would probably score low since my Concentration is bad.

Edit: I dont consider myself retarded but my ability to take an hours long test is weak.

[Mortimer]

Maybe half an hour i would do the test and then starting skipping the answers or guessing, since it would be then too much for me to bother about.

Edit: So i would probably not improve the Gypsy Score..