Higher IQ's

[Cephus]

There have been dozens of studies done since the 1930s that consistently show that religiosity and IQ are inversely proportional.  There are many, many others that show that religiosity and education are likewise inversely proportional.  The smarter you are, the more educated you are, the less you tend to be religious.  Many of these studies have been conducted solely in the United States, it isn't about poor education in other countries, it's an apples-to-apples comparison.

I 100% agree but it's still an implicit coeteris paribus because you don't consider any outside variables, just religion and education or religion and intelligence. Still, I don't like using this as an argument or a reason to brag myself because it's basically a modified version of an argumentum ad populum (i.e. Because the majority of smart people are not religious, being religious is wrong).

It's just looking at correlation, that doesn't imply causation at all.  It also doesn't engage in value judgements.  Religion is right or wrong regardless of the intelligence of the people who believe it, we can only determine that based on the evidence that exists for the claims made by religion.  Unfortunately, there isn't any actual evidence, so...