To investigate the ability of 48 blind and partially sighted children (8 to 10 and 12 to 14 years old) to assume the upright position, Ss were given six trials in which they were requested to move themselves from a tilted starting position in a specially constructed chair to an upright position. No significant differences were found between three visual groups (totally blind, legally blind, and sighted) in the ability to assume the upright position. Findings suggested that the ability to judge the upright may be a postadolescent development. The possibility of moving the chair to the right and left many times in small increments as if to "zero in" on the upright position is suggested as an approach to mobility training. (CL)