This blog post from Stephanie Evergreen of Evergreen Data provides guidance on using Excel to make back to back graphs in order to compare data between responses to the same survey from two different groups.
(Stephanie Evergreen, 2012)
Evergreeen, S., (2012). Making Back-to-Back Graphs in Excel, Evergreeen Data. Retrieved from: http://stephanieevergreen.com/making-back-to-back-graphs-in-excel/
'Making back-to-back graphs in Excel' is referenced in: