here is another source that doesn't rely on the lynn/becker dataset
@Hard Boiled
they used the same online test all over the world.
Official International IQ test website, active since 2018. Data based on 1.3M+ people worldwide who took the same standardized test.
international-iq-test.com
most countries have similar results to the other study. but the difference for iran is extreme: 80 in the lynn/becker dataset and 106 in this one. so either the lynn/becker approach was shit there or only the smartest iranians participated in the second online tests.