[–] FLVPJVCKS 0 points 2 points 2 points (+2|-0) ago
About 75–80 percent of mental retardation is familial (runs in families), and 20–25 percent is due to organic problems, such as chromosomal abnormalities or brain damage. Mild to severe mental retardation is a symptom of several hundred single-gene disorders and many chromosomal abnormalities, including small deletions. Based on twin studies, moderate to severe mental retardation does not appear to be familial, but mild mental retardation does. That is, the relatives of the moderate to severely mentally retarded have normal ranges of IQs, whereas the families of the mildly mentally retarded have IQs skewing lower.
IQ score ranges (from DSM-IV):
Mild mental retardation: IQ 50–55 to 70; children require mild support; formally called "Educable Mentally Retarded".
Moderate retardation: IQ 35–40 to 50–55; children require moderate supervision and assistance; formally called "Trainable Mentally Retarded".
Severe mental retardation: IQ 20–25 to 35–40; can be taught basic life skills and simple tasks with supervision.
Profound mental retardation: IQ below 20–25; usually caused by a neurological condition; require constant care.
The rate of mental retardation is higher among males than females, and higher among blacks than whites, according to a 1991 U.S. Centers for Disease Control and Prevention (CDC) study.
By race, the overall rate was 16.6 per 1000 for blacks and 6.8 per 1000 for whites. Rates of mental retardation for black males, the group with the highest rates, were 1.7 times higher than black females, 2.4 times higher than white males, and 3.1 times higher than white females.
Individuals with IQs below 70 have been essentially exempted from the death penalty in the U.S. since 2002.
True, even if you remove the non-negros their avg is above IQ 79 :
https://iq-research.info/en/average-iq-by-country
Sri Lanka - 79 IQ !!!
Zambia - 79
Democratic Republic of the Congo - 78
Nepal - 78
Qatar - 78
Comoros - 77
South Africa - 77
Cape Verde - 76
Congo - 76
Mauritania - 76
Senegal - 76
Mali - 74
Namibia - 74
Ghana - 73
Tanzania - 72
Central African Republic - 71
Jamaica - 71
Saint Vincent and the Grenadines - 71
Sudan - 71
Antigua and Barbuda - 70
Benin - 70
Botswana - 70
Rwanda - 70
Togo - 70
Burundi - 69
Cote d'Ivoire - 69
Ethiopia - 69
Malawi - 69
Niger - 69
Angola - 68
Burkina Faso - 68
Chad - 68
Djibouti - 68
Somalia - 68
Swaziland - 68
Dominica - 67
Guinea - 67
Guinea-Bissau - 67
Haiti - 67
Lesotho - 67
Liberia - 67
Saint Kitts and Nevis - 67
Sao Tome and Principe - 67
The Gambia - 66
Cameroon - 64
Gabon - 64
Mozambique - 64
Saint Lucia - 62
Equatorial Guinea - 59 IQ !!!
The smartest countries all have the least brown or black skins.
Millions of IQ tests show that a generous "black" IQ of > 80 is for half-white or quarter-white american blacks , not pure bred actual african blacks.
The darkest skin are BELOW IQ 80 and frequently retested by scientists out of shock at the values.
The reason is genetic. Blacks lack countless important intelligence genes.
[–] wonderfuldonut 0 points 1 point 1 point (+1|-0) ago
58 IQ points deems them to be retarded or cretins in nearly all accepted IQ scales
Current Wechsler (WAIS–IV, WPPSI–IV) IQ classification - 69 and below, Extremely Low
Wechsler Intelligence Scale for Children–Fifth Edition (WISC-V) IQ classification - 69 and below, Extremely Low
Alternate Wechsler IQ Classifications (after Groth-Marnat 2009) - 69 and below , Extremely low, Lower extreme
RIAS 2003 Scheme of Verbal Descriptors of Intelligence Test Performance - ≤ 69 - Significantly below average
[–] alacrity167 ago (edited ago)
my best 2 guesses are that IQ is a division. mental ability divided by mental age, so a percentage would make sense. or we could be misinterpreting the result, because 58 seems really fucking low
[–] Gumbatron 0 points 1 point 1 point (+1|-0) ago
Remember, these are "University Students", so presumably, these are some of the smartest women in the country. Although, in such shit holes the likelihood that merit plays any role in gaining entry to university is very low indeed. These are more likely just the daughters of the local village chief/politician, etc.
[–] cantaloupe6 0 points 1 point 1 point (+1|-0) ago
Usually about a standard deviation above the norm. It's unclear if the SD is really 16.
[–] negrojohnny 0 points 2 points 2 points (+2|-0) ago
Damn, she a genius. Regular heart surgeon with a machete.