Without reading the original paper, it's hard to know what to make of this. Did they administer actual intelligence tests, or did they just say "IQ is going up while religious belief is declining, also universities are full of atheists, QED"? If it's the latter, then how did they eliminate non-IQ factors?
This is the bit I like:
The paper - which was co-written with John Harvey, who does not report a university affiliation, and Helmuth Nyborg, of the University of Aarhus, Denmark - cites studies including a 1990s survey that found that only 7 per cent of members of the American National Academy of Sciences believed in God. A survey of fellows of the Royal Society found that only 3.3 per cent believed in God at a time when a poll reported that 68.5 per cent of the general UK population were believers.
Since Lynn's focus is IQ, his take on this appears to be "scientists are smart, so they don't believe in God". Perhaps... but I think it's more relevant that scientists are taught to critically examine ideas, evaluate evidence, watch out for cognitive bias etc. Although professional scientists may tend to be more intelligent that the general population, this is a way of thinking which does not
require high intelligence, and if schools did a better job of teaching this mindset, then rates of religious belief would probably decline accordingly, even among people who aren't part of the "intellectual elite".
On the other hand, any research which shows that Americans are dumber than Europeans has a certain attraction! :evilgrin:
On edit: right after I posted this, a colleague forwarded me a message he received from a senior professor which... well, for privacy reasons I won't go into detail, but suffice it to say it confirms something I've long known from working in higher education: professors may be highly intelligent, but that doesn't stop them being dumb as rocks! Ask anyone who has worked in university IT...