8

Set a deadline for tasks without an external deadline

UpdatedGrade BBig benefitTimeFreeLittle timeSome willpower

When someone else sets the deadline, 80.6% of students finish before it. Only 38.7% finish within the time they themselves expected. When the work gets done almost follows the deadline, and has little to do with their own estimate. So if there is no deadline, set one yourself, and stick to it.

Cost
No cost at all. The hard part is that once you set it, you have to own it. If you treat that day as nothing, it is the same as never having set it.
Benefit
Of students with an external deadline, 80.6% finished before the deadline. Only 38.7% finished within the time they themselves expected. When the work gets done almost follows the deadline. The correlation coefficient is r = 0.82. The closer this number is to 1, the more tightly it follows. The link with their own expectation is only weak.
Notes
Tell other people the date you set, and it moves closer to the kind someone else sets. What the research checked is that deadlines set by other people work. The kind you set only for yourself, such as a time box or a Pomodoro timer, nobody has measured directly. This item is inferred along those lines.
Sources · 1
  1. Buehler, R., Griffin, D., & Ross, M. (1994). Exploring the "planning fallacy": Why people underestimate their task completion times. Journal of Personality and Social Psychology, 67(3), 366–381. doi.org/10.1037/0022-3514.67.3.366

← Read the whole chapter: 4. Don’t waste time

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