Rule · how
Put something at stake
Commitment contracts, deposits or penalties for not doing it.

Studies (3)
Paper
Resilience lessons for young pupils: results on putting things off conflictTestedMixedPupils in group lessons on breaking work into steps and goal promises put things off less, but the numbers conflict.
Randomised trial of 100 fourth-grade pupils in Egypt · vs pupils who got no lessons · they rated themselves · ⚠ numbers unreliable; summary claims more than the results show
Paper
Higher peak power prices cut home use more than asking people to saveTestedHelpedA higher price at peak hours cut home use by about 16% against homes with a screen, and barely faded.
Trial in households near Kyoto, Japan · vs homes with only a power-use screen · behaviour was recorded
Paper
A 20-week starting choice led to more good exercise weeks than 8 weeksUsedHelpedPeople first shown a 20-week contract had more good exercise weeks than those shown 8 weeks: about 4, against 3.
Large randomised trial of 8,809 adults who set up an online exercise contract · vs people first shown an 8-week contract · they rated themselves · ⚠ not yet checked by other scientists; summary claims more than the results show; numbers unreliable
Often used with it

Rule · how much4
Commit for a longer stretchChoose a longer commitment period, e.g. a 20-week rather than an 8-week contract.




