If a person wants to become an electrician, biologist, social worker or work in business, you've got a very confused person. You don't need to be a psychologist or well-trained person to figure that out. While some may balk at being pigeonholed into one of six areas, Holland says inevitably most people remain where they excel. Certain changes are hard to make. The artistic types rarely seem to move.
Some engineers frequently become entrepreneurs who are using their background.
The simplicity of his tests and theories is what makes them effective, Holland says. In science there is often a sales mission, though people don't like to admit that. In fact, anybody can get this message if they want it.