Harvard researchers put online a series of test to measure whether you have an automatic preference for straight relative to gay people; or to white relative to black people. The tests are based on images only. They take only 10 minutes, or even less. You can take the tests by clicking here. As for me, it seems that I have a strong, automatic, unconscious preference for straight and for white people. Turns out I am racist – butI bet won’t do much better.