"Why would immigrants have a lower IQ than native spaniards?"
The commenter should not be down voted.
Different ethnic groups have measurably different IQ's.
Ethnicity represents genes, but also a myriad of other behaviours, attitudes, perspectives: all of the 'possible differentiators' mentioned in the article could easily be accounted for simply by ethnicity. Westerners more likely to play video games, some other group more or less likely to sleep, yet another group may or not value reading or eduction. In some groups women don't play any sports, maybe the lack of activity causes differences.
Most immigrants to Spain come from poor countries with low levels of education and generally lower IQs.
Though it's a really uncomfortable bit of reality, and we don't want to provide cover for bold racism - the position that 'immigrants might be lowering (or improving, even) the IQ results' is a reasonable hypothesis on the face of it.
The commenter should not be down voted.
Different ethnic groups have measurably different IQ's.
Ethnicity represents genes, but also a myriad of other behaviours, attitudes, perspectives: all of the 'possible differentiators' mentioned in the article could easily be accounted for simply by ethnicity. Westerners more likely to play video games, some other group more or less likely to sleep, yet another group may or not value reading or eduction. In some groups women don't play any sports, maybe the lack of activity causes differences.
Most immigrants to Spain come from poor countries with low levels of education and generally lower IQs.
Though it's a really uncomfortable bit of reality, and we don't want to provide cover for bold racism - the position that 'immigrants might be lowering (or improving, even) the IQ results' is a reasonable hypothesis on the face of it.