Why do Islamic nations have lower IQs?

[Avicenna]

You shouldn't merge the IQ of Lebanese Muslims and Christians together because they're two worlds apart.

Lebanese Muslim average IQ = 65

Lebanese Christian average IQ = 99

=

82 which is Lebanon's average IQ.

Can you provide a valid source which supports your comment regarding the IQ level of Leb Christians being 99( very high , most lebs I know are quite dumb ) and leb Muslims being 65?

[SneedsFeedNSeed]

Probably made up. Probably just bait. Nobody believes that Lebanese Christians are comparable to Germans, Swedes, Poles, Belgians etc.
Saudi, Jordan, Morocco, Afghanistan, lots of countries in that stretch have an average IQ of 84. Would be a severe anomaly among the Lebanese if theirs was 65. Which is very, very unlikely.

[Roy]

It is because they are inbred as they practice cousin marriage frequently.

[marumaru]

Can you provide a valid source which supports your comment regarding the IQ level of Leb Christians being 99( very high , most lebs I know are quite dumb ) and leb Muslims being 65?

Seems far-fetched but Lebanon was in fact an economic hub often dubbed Swiss of the Near East before the civil wars so they cannot be that bad.

[Hamilcar]

It is because they are inbred as they practice cousin marriage frequently.

Ashkenazi jews are probably one of the most inbred community and yet they outsmart most whites... Anyway the source the OP posted is simply not reliable.

[Radimir]

Such is the way of Allah.

[Roy]

Ashkenazi jews are probably one of the most inbred community and yet they outsmart most whites... Anyway the source the OP posted is simply not reliable.

They are endogamous and only 'inbred' by having a small genetic pool created by bottlenecks and usually Jewish people do not have people whose parents are literally related to each other. They do not have a recent inbred to them (most of the time) so to speak.

Also they might have positively selected for beneficial genes being a nation of merchants and artisans where intellectual ability would be strongly selected for.

[Ford]

Lack of accessible quality education.

[Voskos]

Most of these tests are designed by westerners for westerners, plus the fact muslim countries don't allow women to educate themselves which makes the results drop dramatically. +lack of urbanization etc etc

[Mitryejd]

The IQ test measures the simplest form of intelligence. mainly maths
Excess IQ is a sign of slavery. East Asians have a higher IQ so why did they become slaves but not dominate the world?
for example A japanese man finishes his workday and does someone else's work, collects garbage, cleans up, because that's their culture.
Korean students sleep and wake up at school almost. Countries that most hardworking but still exploited.
Without these Chine Chine Chine s, no one would do the work of this world.