Video recording of Steve’s Visualizing survey data presentation from the 2014 Tableau Conference. Note that there are now better ways to get the data “just so” but the overarching concept is still the approach you should use.
Presentation on visualization survey data 2.0. PowerPoint, packaged workbooks, and source files
2018 Tableau Conference
Steve’s presentation from the 2018 Tableau Conference: “What’s new with survey data? Lots!”
More on getting the data “just so”, More thoughts on showing sentiment, Showing uncertainty, Dealing with Really Big Surveys, cutting one question by the results of another (intra-question analysis).