Answered on Quora.
I am thinking that perhaps the IQ of Albania or of the Balkans as a whole is in error. A lot of Lynn’s data has not held up well. His figures on Vietnam, the Philippines, Equatorial Guinea, Croatia, and Northern Italy vs. Southern Italy are all false. Dr. Lynn seems to cherry pick his data to go along with his “latitude = IQ” hypothesis.
Someone sent me an article in a recent journal testing the IQ of Croatia. I forget what the score was, but it was ~100. That’s much higher than Lynn’s 90. I have a feeling that Lynn’s scores for those other Balkan lands may be off too. Maybe it is time to do some more testing.