The OCEAN model mentioned by the CA exec (Nix) was originally based on factor analysis, not ML. The key criticism of factor analysis is just that one can’t infe

The OCEAN model mentioned by the CA exec (Nix) was originally based on factor analysis, not ML. The key criticism of factor analysis is just that one can’t infer causality, but in an application like this no one cares about causation — only what works. I’m inclined to to think the Mercers got some ROI here.