Re:The plateauing of cognitive ability among top earners
by metacritic12 on Saturday February 04, 2023 @02:01PM
(#34657053)
The correlation coefficient is actually about 0.23 according to the paper. It just looks really correlated when they bin it by deciles but that's a visual artefact.
If you plotted individual people in a scatter plot this is what 0.23 correlation looks like: http://www3.cmp.uea.ac.uk/~jrk/distribution/correlations/cor... i.e. you can barely tell any positive relationship visually.
Did you look at the same chart I did? It um, goes very obviously up and to the right. There's a ridiculously strong correlation, just not a linear one.