—Matt Mason, Ames, Iowa Handedness is defined by fine motor control, so you are weakly right-handed. (This is unusual for righties.) The more you do with your right hand, the more strongly you are right-handed. The same goes for left-handers. (But in contrast, they are seldom strongly left-handed.) Only people who can write equally easily and well with either hand (without having developed the practice as a fun skill) are truly ambidextrous. They are very rare, but about 1 percent of people claim ambidexterity.
