Thanks PEI, I understand the pitfalls you are talking about. I am currently just trying to see if the data is available and then see what kind of data it is and what could it be used for. From personal experience; instructors and examiners bring a lot of biases to simulator sessions and yes, ideally, they should be able to qualitatively and objectively assess trainees but anyone involved in flight training knows how varied individual examiners/instructors can be in their "objective assessment".
Further, with regard to recruitment, aviation is predominantly male and pale in the west and I'd like to learn more about how tests are or are not biased against certain demographics.
Your point about perspectives is crucial and they are interesting articles.
Thanks again