I still have to find a "scientific approach" or name for the methodoly (Likert, etc.), but I am going to count the number of occurances of certain types of rhetorics (as outlined in the secondary sources and theoretical model) and see how the percieved auidence is expected to react to them. I may create a survey of people and have them compare and contrast 3 adds and create a list of questions to ask based on the theoretical perpsectives I decide to use the most in the discussion of my topic.