@article{10699,
  author = {Torleif Halkjelsvik and Magne J{\o}rgensen and Karl-Halvor Teigen},
  title = {To Read Two Pages, I Need 5 Minutes, But Give Me 5 Minutes and I Will Read Four: How to Change Productivity Estimates by Inverting the Question},
  abstract = {Past research has shown that people underestimate the time they need to complete large tasks, whereas completion times for smaller tasks are often overestimated, suggesting higher productivity estimates for larger than for smaller tasks. By replacing the traditional question about how much time a given work will take with a question about how much work can be completed within a given amount of time, we found the opposite pattern. This could reflect a general tendency to underestimate large amounts relatively to small ones both for durations and for amounts of work. We explored this idea in two studies where students estimated reading tasks, a third where IT-professionals estimated software projects, and a fourth where participants imagined a familiar walk, divided into time segments or part distances of varying lengths.},
  year = {2011},
  journal = {Applied Cognitive Psychology},
  volume = {25},
  number = {2},
  pages = {314-323},
}