Five peer-reviewed findings, written up in full — the design, the numbers, what they mean, and what follows for how you build a system. Every claim links to the paper it came from, so you can check it. Most productivity advice cannot survive that.
159 students tracked for a semester. Effortful self-control was consistently unrelated to goal attainment. What mattered was how many temptations they met at all.
Eight hospitals on four continents, 7,688 patients. Introducing a 19-item checklist cut the death rate from 1.5% to 0.8% and complications from 11% to 7%.
A meta-analysis of 138 experiments and 19,951 participants found that monitoring goal progress reliably improves goal attainment — with larger effects when progress is physically recorded.
Six experiments showed that unfinished tasks intrude on thought until you write a specific plan for them — at which point the interference disappears, even though nothing has been completed.
A meta-analysis of 94 independent tests found that pre-committing to a specific if-then plan produced a medium-to-large improvement in follow-through, d = .65.
More studies are added as they are covered in the videos.
The numbers, the citations, and what each finding means for how you build a system. Written up properly, not summarised from a blog post.
One email when a new study goes up. Nothing else.