Speed and Accuracy Variability as an Indicator of Fatigue and Boredom in a VDT Data-Entry Work.
Pan-CS; Shell-RL; Schleifer-LM
Work with Display Units 92, Selected Proceedings of the Third International Scientific Conference on Work with Display Units, Berlin, Germany, September 1-4, 1992 1993:374-378
A study was conducted to assess whether speed and accuracy could serve as reliable indicators of fatigue and boredom in repetitive computer work, and whether such indicators would be affected by electronic monitoring. Twenty four female data entry operators participated in the 3 day study by entering numeric data under either of the following work management conditions: electronic performance monitoring (EPM) or no EPM. Each day consisted of a morning and an afternoon session, and each session was divided into three, 40 minute work periods. Speed (keystrokes per minute) and accuracy (errors per minute) were recorded continuously. Subjects rated their fatigue and boredom levels at periodic intervals, and performance was rated by variabilities of speed and accuracy as well as the parameters themselves. Analyses showed a significant increase for fatigue and boredom through the progression of the workday, irrespective of EPM or No EPM conditions. Under the No EPM condition, speed variability increased significantly from the morning session to the afternoon session. A correlation was also observed between increasing levels of fatigue and boredom with the increased speed variations during the afternoon work sessions. Under the electronic monitoring condition, a corresponding relationship was observed between rising levels of fatigue and boredom with accuracy variability across the morning work periods. However, while variability of accuracy was observed across morning periods, no variability was observed for accuracy in the analysis of the morning and afternoon sessions. The authors conclude that speed performance alone may be a reliable indicator of fatigue and boredom associated with repetitive computer tasks.
Video-display-terminals; Repetitive-work; Work-performance; Office-workers; Data-processing; Occupational-psychology; Work-capacity; Keyboard-operators;
Luczak-H; Cakir-A; Cakir-G;
Work with Display Units 92, Selected Proceedings of the Third International Scientific Conference on Work with Display Units, Berlin, Germany, September 1-4, 1992