Not only can David Hawkins get the level of consciousness from the test person, but he can get it from any other person (including people who lived long ago) organization, religion or country on this planet. Power vs. Force is the result of many years of research and thousands of tests, resulting in David Hawkins Map of Consciousness.
Have you even noticed that the things you like give you energy and the things you don't seem to drain the energy out of you? Think of it for a while. Does your current job give you energy or are you drained when the working day is over? And what about the other activities in your life? The food you eat and the relationships you have with other people?