I’m going to completely ignore “statistical significance”, as scientific papers are well known to have no idea how to do statistics properly with multiple hypotheses, and can be assumed to be doing it wrong until proven otherwise.
If null hypothesis were false, the chance of all almost signs pointing in the same direction would be very low. As far as I can tell what the paper finds out is that religion is less effective in Denmark and Netherlands than in US, but it increases happiness, and it’s extremely unlikely to be a false positive result due to chance.
I’m going to completely ignore “statistical significance”, as scientific papers are well known to have no idea how to do statistics properly with multiple hypotheses, and can be assumed to be doing it wrong until proven otherwise.
If null hypothesis were false, the chance of all almost signs pointing in the same direction would be very low. As far as I can tell what the paper finds out is that religion is less effective in Denmark and Netherlands than in US, but it increases happiness, and it’s extremely unlikely to be a false positive result due to chance.