Endowed progress effect
Give people a head start on a goal and more of them finish it.
Artificial progress toward a goal raises the chance of completion, even when the actual work required is unchanged. A card needing ten stamps with two already given beats an eight-stamp card that is empty. The head start reframes the person as someone already underway rather than someone about to begin.
Same work, different starting point
How it shows up in software
Onboarding checklists ship with the first item already ticked because the account exists. Profile completeness meters start above zero by counting name and email. Referral programmes seed a progress bar with credit for signing up. The mechanic costs nothing and moves the user from step zero, which is the step with the highest abandonment.
Using it well
- Tick real work the user has already done, such as verifying email or connecting a device, rather than inventing a fake first step.
- Make the head start legible: say which items are already complete and why.
- Pair it with a visible remainder so the gradient has somewhere to point.
- Check completion rate for the whole checklist, not only the seeded step, since a head start that never leads to step two is theatre.
Where it turns manipulative
- Inflating a bar with items the user never did teaches them that your progress indicators lie, and the cost lands on every future indicator you ship.
- Seeding progress on a goal the user did not choose, like a profile they have no reason to complete, pushes data disclosure using a mechanic they cannot see.
- Stacking a head start onto a paid completion, so the free progress ends exactly where the wallet begins, converts a motivational cue into a sales trap.
Where you have seen it
LinkedIn
A new profile starts at a non-zero strength level because the signup fields already count.
Stripe
The dashboard activation checklist marks account creation and test-mode keys as done before the user touches anything.
What the research says
- Nunes and Dreze, 2006Mixed evidence
Car wash customers given a twelve-stamp card with two stamps pre-filled completed it more often, and faster, than customers given an empty ten-stamp card requiring identical purchases.
A single field study plus lab work, widely cited and rarely replicated at the same scale. Treat the direction as sound and the size as unknown for your context.
- Kivetz, Urminsky and Zheng, 2006Mixed evidence
The same paper that established human goal gradient: Effort rises as a goal gets closer, which is why progress bars work. effects also showed that illusory progress shifts the starting point of acceleration.
Grades are a judgement about the evidence, not about how useful the idea is. Plenty of contested effects are still worth knowing, as long as you do not cite them as settled.