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Extra update: amit már szintén ezer éve mondunk a tényekkel és logikával szembemenőknek...

 

A térérzékelésnek semmi köze az általános IQ-hoz, ami azt is jelenti, hogy helytelenül szerepelnek az intelligenciatesztekben a térérzékeléssel összefüggő feladatok. Különösen örömteli nap a mai, amikor e csodás kutatásra sikerült bukkannom. Nem hittem volna, hogy egyszer ezt is bebizonyítják - a kutató áldozatos és kikezdhetetlen munkáját, brilliáns logikáját ezúton is üdvözlöm és mindenki nevében köszönöm. :)

https://psychcentral.com/news/2017/11/09/iq-may-not-reflect-visual-intelligence/128536.html

Uh, micsoda update-k:

https://www.medicaldaily.com/study-confirms-iq-tests-do-not-accurately-predict-intelligence-243971

Tartalmaz néhány pontatlanságot, de még így is évszázadok tudományos mítoszait húzza keresztül, az azokra épülő "tudományos" magyarázatokkal együtt:

https://www.pnas.org/content/early/2019/01/14/1808659116

https://medicalxpress.com/news/2019-01-facial-masculinity-sexual-ornament-quality.html

Még hogy nincs genetikai érdekellentét a nemek között (bár ennek fényében az anyáknak jó vadászoknak/élelemszerzőknek/egészségesen önzőnek kell lenniük, másképp az egésznek nincs értelme):

https://www.smithsonianmag.com/science-nature/how-dads-genes-can-prepare-mom-parenthood-180969793/

Egy itteni szemmel nagyon szomorú study. :(

http://blogs.discovermagazine.com/d-brief/2019/02/06/womens-brains-are-younger-than-mens-of-the-same-age-study-finds/

Mi vagyunk az éretlenebbek - de most már legalább tudjuk. ;)

Komolyabbra fordítva, ez megmagyarázhatja a fiúk IQ előnyét fiatalabb, a nőkét idősebb korban (női előny jellemzően érettebb célcsoportnál szokott kijönni), vagyis megmagyarázhatná, ha nem buktatja meg a múltkori, térérzékelésről szóló study az egészet.

Így viszont csak annyit jelent, hogy a nők még annál is okosabbak.

Ezen felül rámutat, miért lehet veszélyes nőként a túl korai házasság, amikor még alig okosabbak a férjüknél...

Digit ratio:

https://www.researchgate.net/publication/23689591_Digit_Ratio_2D4D_and_Sprinting_Speed_in_Boys

https://www.ncbi.nlm.nih.gov/pubmed/15500996

BACKGROUND:
The ratio between the length of the 2nd or index finger and the 4th or ring finger (2D:4D) differs between the sexes, such that males have lower 2D:4D than females, and shows considerable ethnic differences, with low values found in Black populations. It has been suggested that the sex difference in 2D:4D arises early in development and that finger ratio is a correlate of prenatal testosterone and oestrogen. In children, 2D:4D has been reported to be associated with measures of fetal growth, congenital adrenal hyperplasia, developmental psychopathology, autism and Asperger's syndrome. However, little is known of the patterns of sex and ethnic differences in the 2D:4D ratio of children.

AIM:
To investigate sex and ethnic differences in 2D:4D in Caucasian, Oriental and Black children.

STUDY DESIGN:
Population survey.

METHOD:
The 2D:4D ratio was measured from photocopies of the right hand of Berber children from Morocco, Uygur and Han children from the North-West province of China, and children from Jamaica.

RESULTS:
There were 798 children in the total sample (90 Berbers, 438 Uygurs, 118 Han, and 152 Jamaicans). The 2D:4D ratio was lower in males than in females and this was significant for the overall sample and for the Uygur, Han and Jamaican samples. There were significant ethnic differences in 2D:4D. The Oriental Han had the highest mean 2D:4D, followed by the Caucasian Berbers and Uygurs, with the lowest mean ratios found in the Afro-Caribbean Jamaicans. The sex and ethnic differences were independent of one another with no significant interaction effect. In the overall sample there were no associations between 2D:4D and age and height.

CONCLUSIONS:
In common with adults, the 2D:4D ratio of children shows sex and ethnic differences with low values found in a Black group. There was no overall association between 2D:4D and age and height suggesting that the sex and ethnic differences in 2D:4D appear early and do not show appreciable change with growth.

https://www.nextnature.net/2010/06/reading-the-body-finger-length-ratio-predicts-athletic-ability/

Anyai ágon öröklődik (akárcsak az IQ):

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5566275/

A rasszok közötti különbség "digit ratio" terén nagyobb a nemek közötti különbségeknél.

A magasabb 2D:4D arány a magasabb átlagos IQ-val, az alacsonyabb 2D:4D a magasabb sportteljesítménnyel mutat korrelációt - ami nyilván itt is csak a térlátással torzított IQ-t (aminek érdekes módon épp az alacsonyabb 2D:4D arány kedvezne) és a sporteredmények egy bizonyos változatát jelentheti.

Geographic and ethnic variation in 2D:4D

Manning and colleagues have shown that 2D:4D ratios vary greatly between different ethnic groups. In a study with Han, Berber, Uygur and Jamaican children as subjects, Manning et al. found that Han children had the highest mean values of 2D:4D (0.954±−0.032), they were followed by the Berbers (0.950±0.033), then the Uygurs (0.946±0.037), and the Jamaican children had the lowest mean 2D:4D (0.935±0.035).[42][43] This variation is far larger than the differences between sexes; in Manning's words, "There's more difference between a Pole and a Finn, than a man and a woman."[44]

It should be noted, however, that the standard deviations associated with each given 2D:4D mean are considerable. For example, the ratio for Han children (0.954±−0.032) allows for a ratio as low as 0.922, while the ratio for Jamaican children (0.935±0.035) allows for a ratio as high as 0.970. Thus some ethnic groups' confidence intervals overlap.

A 2008 study by Lu et al. found that the mean values of 2D:4D of the Hui and the Han in Ningxia were lower than those in European countries like Britain.[45]

In 2007 Manning et al. also found that mean 2D:4D varied across ethnic groups with higher ratios for Whites, Non-Chinese Asians, and Mid-Easterners and lower ratios in Chinese and Black samples.[46]

Two studies explored the question of whether geographical differences in 2D:4D ratios were caused by gene pool differences, or whether some environmental variable associated with latitude might be involved (e.g., exposure to sunlight or different day-length patterns). The conclusions were that geographical differences in 2D:4D ratio were caused by genetic pool differences, not by geographical latitude.[47][48]

Consanguinous parentage (inbreeding) has been found to lower the 2D:4D ratio in offspring,[49] which may account for some of the geographical and ethnic variation in 2D:4D ratios, as consanguinity rates depend among others on religion, culture, and geography.[50]

https://en.wikipedia.org/wiki/Digit_ratio

Update:

https://newsroom.mastercard.com/asia-pacific/press-releases/parents-are-crucial-influencers-for-girls-pursuing-stem-careers/

A számok a reáloktatás színvonalával, a magas követelményekkel és az adott térség eredményeivel korrelálnak.

Currently studying STEM Currently not studying STEM
Asia Pacific 59.0 41.0
Australia 33.0 68.0
China 76.0 25.0
India 69.0 31.0
Indonesia 56.0 44.0
Malaysia 59.0 41.0
Singapore 63.0 37.0

"Among the countries, Australia had the lowest uptake of STEM, with only 33 percent of girls surveyed (15 to 19 year olds) currently studying STEM subjects. China (76 percent) and India (69 percent) have the highest uptake of STEM among the students."

Nők, férfiak és magas fizetést biztosító "karrierpályák". ;)

 

 

 

 

 

 

 

+1

https://www.sciencedaily.com/releases/2018/09/180925115244.htm

Volt már?

http://mipszi.hu/cikk/131016-ereinkben-folyo-vadallat-tesztoszteron

https://www.journals.uchicago.edu/doi/pdfplus/10.1086/228050

https://journals.sagepub.com/doi/10.1111/j.1467-9280.1990.tb00200.x

https://pdfs.semanticscholar.org/597e/3ac0c7e1314281528a31377ad26e3e1a0f9b.pdf

a szöveget megalkotta: Kalechtor  2016.01.01. 15:51
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