Do you like things to be just so? Do you have trouble making decisions? Are you a perfectionist? If you answered yes to any of these questions, you may have Obsessive-Compulsive Personality Disorder. This is a personality disorder that affects approximately 1.6% of the population in the United States. It can cause a lot of distress and problems in relationships and work life. If you think that you may have Obsessive-Compulsive Personality Disorder, take this free online test to find out for sure!