Exploring the time prediction process: the effects of task experience and complexity on prediction accuracy
Version of Record online: 24 APR 2003
Copyright © 2003 John Wiley & Sons, Ltd.
Applied Cognitive Psychology
Volume 17, Issue 6, pages 655–673, September 2003
How to Cite
Thomas, K. E., Newstead, S. E. and Handley, S. J. (2003), Exploring the time prediction process: the effects of task experience and complexity on prediction accuracy. Appl. Cognit. Psychol., 17: 655–673. doi: 10.1002/acp.893
- Issue online: 1 SEP 2003
- Version of Record online: 24 APR 2003
- Economic and Social Research Council of the United Kingdom. Grant Number: R42200034413
Whilst considerable research shows that people tend to underestimate their task completion times, there is little research concerning factors that mediate the time prediction process. In Experiments 1 to 3 a simple, well-structured task, the 3-disk Tower of Hanoi, showed no evidence of underestimation; in fact, participants consistently overestimated the duration of this task. However, predictions were more accurate among participants who acquired some task experience beforehand. Task complexity was also found to be an important factor since the more cognitively complex 4- and 5-disk versions produced less biased predictions. Using a cognitively undemanding disk movement task, we found a general temporal overestimation in Experiment 4, thus suggesting that task duration might be responsible for the general lack of underestimation in the present studies. These results have implications for the planning of tasks in everyday life, and also suggest conditions under which time prediction accuracy can be improved. Copyright © 2003 John Wiley & Sons, Ltd.