I have never seen any rating, anywhere that was objective. When I was back in the Army, I received ratings semi annually or whenever a new supervisor came in. It seemed that if I got along with the supervisor I got high ratings but if I did not get along well with a supervisor I got low ratings even tho I did the same amount and quality of work. Ratings are going to be subjective since humans, who are sujective beings are doing the ratings.
There is no better love between 2 people than mutual respect for each other WT Young, 2002
Who gave anyone the authority to call me an authority on anything. WT Young, 1969
Since Evolution is only ~90% correct it should be thrown out and replaced by Creation which has even a lower % of correctness. W T Young, 2008