TY - JOUR
T1 - Understanding sources of user variability in computer-based data entry performance
AU - Czaja, Sara J.
AU - Sharit, Joseph
AU - Nair, Sankaran
AU - Rubert, Mark
N1 - Funding Information:
This research was supported by the National Institute on Aging Grant AG11748-05, and is associated with the Miami Center on Human Factors and Aging Research which is one of the Edward R. Roybal Centers for Research on Applied Gerontology. We thank Ercan Dilsen and Robert Morgan for their invaluable assistance with this paper.
PY - 1998/1/1
Y1 - 1998/1/1
N2 - The pervasive use of computers in work settings implies that an increased number of workers, with varying levels of skills and abilities, will be performing computer-based tasks. This study investigated the impact of age, cognitive abilities, and computer experience on the performance of a real world data entry task. One hundred and ten subjects, ranging in age from 20-75 years, performed the task for nine hours following task training. The results indicated that abilities such as visuo-spatial skills, motor skills and processing speed had a significant impact on performance as did age and prior computer experience. With respect to age, the older participants completed less work than the younger and middle-aged subjects. Age differences in psychomotor skills and processing speed appeared to be important factors underlying age effects. In fact, the data indicated that after controlling for differences in these abilities age was no longer a significant predictor of work output. Further, after controlling for differences in work output the older people made fewer errors than the younger people. Overall the data suggest that older people will be at a disadvantage in the performance of computer-based data entry work to the extent to which speed of responding is emphasized. However, if speed of responding is not a critical element of performance they will be able to achieve comparable levels of performance to that of younger people.
AB - The pervasive use of computers in work settings implies that an increased number of workers, with varying levels of skills and abilities, will be performing computer-based tasks. This study investigated the impact of age, cognitive abilities, and computer experience on the performance of a real world data entry task. One hundred and ten subjects, ranging in age from 20-75 years, performed the task for nine hours following task training. The results indicated that abilities such as visuo-spatial skills, motor skills and processing speed had a significant impact on performance as did age and prior computer experience. With respect to age, the older participants completed less work than the younger and middle-aged subjects. Age differences in psychomotor skills and processing speed appeared to be important factors underlying age effects. In fact, the data indicated that after controlling for differences in these abilities age was no longer a significant predictor of work output. Further, after controlling for differences in work output the older people made fewer errors than the younger people. Overall the data suggest that older people will be at a disadvantage in the performance of computer-based data entry work to the extent to which speed of responding is emphasized. However, if speed of responding is not a critical element of performance they will be able to achieve comparable levels of performance to that of younger people.
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U2 - 10.1080/014492998119355
DO - 10.1080/014492998119355
M3 - Article
AN - SCOPUS:0032165375
VL - 17
SP - 282
EP - 293
JO - Behaviour and Information Technology
JF - Behaviour and Information Technology
SN - 0144-929X
IS - 5
ER -