Professor Anthony Greenwald is well known for the development of an Implicit Association Test that measures the strengths of ones attitudes about a number of issues.
The latest version of this test reveals how strong a football fan you are. Within this UW News article
http://www.washington.edu/news/2014/01/24/how-strong-of-a-football-fan-are-you-theres-a-test-for-that/ you will find a link to the online test so you can test the strength of your support!