I believe that examining narratives that have settled in over time is a good thing on many levels. What have you learned about changing narratives from your adult education experience?
Researching Likert scales for a client project reminded me that, like it or not, evaluation is equally art and science. With a dash of trial and error. In that spirit, here's some background on "Likert" scales and some best practices to get you started on a solid footing.