I recently saw a presentation from someone trying to build a predictive model for violent incidents in mental healthcare settings. They took steps to prevent th

I recently saw a presentation from someone trying to build a predictive model for violent incidents in mental healthcare settings. They took steps to prevent the model considering race because this could potentially lead to less favorable treatment for some groups. The model was unable to give any useful predictions. I don't know if it would perform better without the deliberate limitations, but I do know that healthcare staff are making their own judgements in it's absence.