Effect of task length on remembered and predicted duration.

  title={Effect of task length on remembered and predicted duration.},
  author={Michael M. Roy and Nicholas J. S. Christenfeld},
  journal={Psychonomic bulletin & review},
  volume={15 1},
Vierordt's (1868) law states that when estimating the duration of a previous task, people overestimate short durations and underestimate long ones. We examine whether this same pattern holds for remembered and predicted duration for tasks lasting between 1 and 15 min. In support of Vierordt's law and its extension to future duration estimates, task duration tended to be overestimated for short tasks (less than 2 min) and underestimated for long tasks for both remembered and predicted duration. 

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