Answer sixteen everyday questions and find out which blood type personality — A, B, O or AB — your answers line up with. Free, no sign-up, about four minutes.
You are not typing in A or O anywhere. Each answer adds a point to one of the four tallies, and the type with the highest total is what comes back. So the interesting part is when the result differs from the blood type you actually have — and it often does.
Blood type personality theory is a popular framework in Japan and Korea with no scientific backing: studies have not found a link between blood group and personality. Treat the four portraits as characters to compare yourself against, not as a diagnosis of who you are.