Given the importance of construct validity, the scale was
developed starting with the conceptual dimensions identified in
the literature review. Likert-type items were written for each of
the six dimensions. The wording of items initially was based on
how various writers had described motivations associated with
public service. Both positively and negatively worded items were
developed. A focus group of students in a master of public
administration (MPA) program convened to discuss their ideas
about public service. Approximately thirty-five items were
created based on the literature and the input from the focus
group.