A study by Peter J. Rentfrow, Samuel D. Gosling, and Jeff Potter concluded that Arkansas is one of the ten most nuerotic states in America. The study is based on the Big Five Personality Test.
You can take the Big Five Test Here to see where you stand. You can also see what states you have the most in common with by plugging in your scores here.
For the record my Neuroticism score is 32 and I have the most in common with people in Arizona, Nevada, and New Mexico. Arkansas falls 21st on my list, which explains a lot of conversations I have with my friends and coworkers.