I think PP meant "how much training do the DWP give people who are appointed to make assessments of claimants' forms", not how much training someone appointed to the job already has.
Although, mind you (and I am a nurse, too) there are a LOT of nurses who lack empathy and working for the DWP is an ideal job for them. They get to be judge and jury, don't they? And I can see why this would appeal to people like this.
The nurse (she told me she was one) who did my reassessment after the initial three years was like that. I knew (and told DH) when she was doing the assessment that she would give me zero points. The first thing she asked me was how I was able to look after two cats if I considered I was disabled.
I mean FFS. That is an awful thing (and irrelevant - but she was trying to make out that I could open sachets of cat food so that she could deny that I was able to cook meals). And lo and behold - that is exactly what happened. It was written there when I got the papers. "You said that you could not cook meals easily but you also said you could open sachets of cat food so you were lying."
I am paraphrasing, of course, but that was the long and the short of it.
I have to ask, OP - especially in light of the political beliefs you have shared - HOW DO YOU SLEEP AT NIGHT, BEING PART OF THIS SYSTEM?