ONE-HANDED TOUCH TYPING ON A QWERTY KEYBOARD

''Half-QWERTY'' is a new, one-handed typing technique designed to faci litate the transfer of two-handed touch-typing skill to the one-handed condition. It is performed on a standard keyboard with modified softw are or on a special half-keyboard with full-size keys. In an experimen t using touch typists, hunt-and-peck typing speeds were surpassed afte r 3 to 4 hr of practice. Subjects reached 50% of their two-handed typi ng speed after about 8 hr. After 10 hr, all subjects typed between 41% and 73% of their two-handed speed, ranging from 23.8 to 42.8 words pe r minute (wpm). In extended testing, subjects achieved average one-han ded speeds as high as 60 wpm and 83% of their two-handed rate. These r esults are important for providing access to disabled users and for de signing compact computers.