Effects of Practice on Dial Reading
In: Human factors: the journal of the Human Factors Society, Band 6, Heft 1, S. 81-85
ISSN: 1547-8181
The effects of practice and exposure time were studied for circular and linear (vertically arrayed for this study) dials of the moving pointer type. Type of dial was a between-groups variable, with one group of 11 subjects having the vertical dial and another group of 11 subjects the circular dial. Practice for five daily sessions, and exposure times of 100 or 500 msec, were within-groups variables. The circular dial was superior to the vertical dial for both exposure times, whether per cent correct or amount of reading error was the measure. The practice variable had a minor effect and was statistically significant only for the circular dial at 100 msec. exposure time, and only for the per cent correct measure. Practice tended to alter the distribution of errors for the circular dial.