Psmith, you don't actually know what the samples sizes are. You're guessing. Or have you checked up on each of the various studies I mentioned? As it is, collectively we're talking about dozens of studies. With any one of them, you have a point. But taken together, you just sound like you're repeating an argument regardless of what I say. For reference, I haven't read every single one of the studies either. I've looked into a couple out of curiosity, but I'm not a sociologist. But if you have contrary evidence, show it. In the meantime, I'm more than ok provisionally believing something for which we have dozens of data points stretched out across decades. Skepticism is great for filtering out aberrations and bias, but also useful for identifying when to accept something as true until/unless presented with sufficient competing evidence.
Also, you claim that no specific criteria was given, but that's because my thread is a summary of the studies. As mentioned, for the 3rd time now, I literally Googled a few of them to find them online. So you can research them further if you'd like. And it also makes your claim that there's nothing online about this entirely false. Besides, are certain measures of honesty, cheating, lying, prejudice, etc. NOT good variables to measure when testing morality?
I also didn't say it wasn't overwhelming. I said - twice - that it was unequivocal and clear in its findings. I also said it was a provisional truth, subject to further evidence, but that's a rote disclaimer and is true of literally all studies ever about everything. That's probably what you were referring to. Or perhaps the final quoted line in your post there, in which I again hedge against calling it abject proof, but certainly endorse its validity when taken as a whole. I'm happy to be disproven, but have yet to see any competing studies from unbiased sources that refute my claim.
The 1991 book also compiles dozens of such studies, so we can't say this is just 1-2 studies taken in a vacuum.
So, do you have evidence to contradict my claim and cited research? Anything, at all? At best, I agree with you that religion is far from the only factor in morality. And I agree that this - as most things do - bears further study. However, you're taking it too far, and ignoring what's being presented to you.