Rosenberg (1957), in his classic work, Occupations and Values, noted that an occupational choice is not a value itself, but is made on the basis of values:When an individual chooses an occupation, he thinks there is something good about it, and this conception of the "good" is part of an internalized mental structure which establishes priorities regarding what he wants out of life. To ask what an individual wants out of his work is to a large extent to ask what he wants out of life. It is, therefore, indispensable to an adequate understanding of the occupational decision making process to consider what people want or consider good or desirable, for these are the essential criteria by which choices are made. (Rosenberg, 1957, p. 6)