For males, in Norway, from 1962-1991, and with a range of roughly three points. Got anything a little more widespread/recent to back up that claim?

Here's what Our World in Data says: https://ourworldindata.org/intelligence

> Got anything a little more widespread/recent to back up that claim?

The Norwegian study cited to "Dutton E, van der Linden D, Lynn R (2016) The negative Flynn effect: A systematic literature review. Intelligence 59:163–169". Here's the HN thread on that paper specifically: https://news.ycombinator.com/item?id=13723859 (Haven't read it myself; was just curious.)

Others have linked some studies, but I wasn't aware that there's disagreement about this. I'll have to look into it more.

This should keep you busy: https://scholar.google.co.uk/scholar?hl=en&as_sdt=0%2C5&q=An...