In which decade did TV first begin to shape the political agenda and possibly the types of candidates nominated?

In a cross-sectional design, the survey is administered

A) twice to each participant, yielding a difference score that indicates the amount of change over time. B) once to each participant, yielding data on the measured characteristics as they exist at the time of the survey. C) many times to each participant, with an intervening manipulation that is predicted to have an effect on the survey. D) None of the above

Which of the following is the main type of organization that lobbies on behalf ofworkers?

a. public interest group b. trade association c. corporation d. labor union