respondents from all
educational levels and varied life experiences should be able to comprehend the
language, concepts, and questions used in the survey so that they could make an
informed decision. The particular challenge in CV surveys is to convey to respondents
what they would get, how it would be provided, and that they would have
to pay for it. Given the amount of information it was necessary to convey in the
survey, this required an extended period of instrument development research, which
is described below. Various diagnostic checks were used in the survey to determine
acceptance of scenario features.