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Plate LAW·014 · LawGrid B2 · Rev. 2026-08-14

Goal-Gradient Effect

Effort increases as a visible goal gets nearer, and artificial early progress accelerates the whole journey.

LawEstablished researchIntermediate

Definition

Originally observed by Clark Hull in animal learning (1932), the goal-gradient effect describes accelerating effort as distance to a reward decreases. Kivetz, Urminsky and Zheng (2006) demonstrated it in consumer behaviour, including the endowed progress variant where starting people partway along increases completion.

Established research. Originates in published research and has been replicated. The effect is real. Its size in your product still needs measuring.

On this plate
  1. 1Definition
  2. 2The endowed progress finding
  3. 3Applying it without lying
  4. 4Showing progress
  5. 5In practice
  6. 6Commonly confused with
  7. 7Local chart
  8. 8Sources
  9. 9Continue from here

Reach for this when

  • Designing onboarding, setup or loyalty mechanics.
  • Structuring multi-step flows.
  • Deciding where to place the highest-friction step.
  • A flow has a genuine finish line and people are abandoning it partway.

Common mistakes

  • Fabricating progress that did not happen.
  • Placing the hardest step last when it is not also the most motivating.
  • Using percentage bars that jump unpredictably.

The endowed progress finding

In the Kivetz study, customers given a twelve-stamp card with two stamps already applied completed it faster than customers given a ten-stamp card with none, despite both requiring ten purchases. Perceived progress, not actual remaining work, drove behaviour.

This is the most directly usable finding in the area, and it explains why setup checklists that pre-tick 'created your account' outperform ones that start at zero.

Applying it without lying

  • Credit steps the user has genuinely already completed, such as verifying their email or creating the account.
  • Show remaining steps rather than an abstract percentage, so progress is verifiable.
  • Make the last step the easiest one, since that is where motivation is highest and friction is most costly.
  • Break long journeys into visible sub-goals, each with its own completion.

Showing progress

Do

  • Credit work already done, including anything gathered before the flow started.
  • Show the number of steps remaining rather than a percentage nobody can verify.
  • Keep step sizes roughly even, so the bar does not stall on one long step.

Do not

  • Start a bar at zero when the reader has already given you three fields.
  • Add steps to make the remaining count look smaller.
  • Show progress on a task the reader did not choose to start.

In practice

  1. i.

    Pre-credited setup checklists

    SaaS onboarding

    A five-item checklist that opens with 'Account created' already ticked starts the user at twenty percent honestly, and measurably improves completion of the remaining items.

  2. ii.

    Progress towards free shipping

    Ecommerce

    Showing the remaining amount needed for free delivery raises basket size. It also raises returns when the threshold pushes people into items they did not want, so measure both.

  3. iii.

    Endowed progress that was earned

    The honest version

    Marking the first two steps complete because the reader signed up and confirmed an email is accurate. Marking them complete for nothing is a trick, and it is detectable the moment someone reads the labels.

Commonly confused with

Close neighbours that get substituted for each other. The difference is stated first, then the condition that picks one over the other.

vs.

Zeigarnik Effect

Law

Interrupted tasks stay mentally active until they are resolved.

Key difference

The Zeigarnik effect is about the pull of something unfinished. The goal-gradient effect is about accelerating as the end comes into view. One explains why an incomplete checklist nags; the other explains why the last two steps go fastest.

Use Goal-Gradient Effect when

  • There is a measurable distance left to show.
  • You are deciding how to display progress, or whether to endow some.
  • The lever is perceived proximity to the end.

Use Zeigarnik Effect when

  • The question is whether people return to something they abandoned.
  • You are designing a reminder, a saved draft or a resume point.
  • The tension is about openness, not nearness.

Learn about Zeigarnik Effect

Local chart

LAW·014 · Region I · Grid B2

This entry and the entries it is stated to connect with. Each line is labelled with what the connection means.

Endowment EffectBIAS·007 · WHY THIS WORKSProgress IndicatorCMP·026 · APPLIED THROUGHStepperCMP·029 · APPLIED THROUGHMulti-Step FlowsPAT·016 · APPLIED THROUGHOnboardingPAT·014 · APPLIED THROUGHOnboarding CopyWRT·016 · APPLIED THROUGHZeigarnik EffectLAW·010 · COMMONLY CONFUSED WITHOne Long Form or Several Short StepsCASE·009 · PRACTICAL EXAMPLEEcommerce ChecklistCHK·006 · CHECK YOUR WORKOnboarding ChecklistCHK·005 · CHECK YOUR WORKParkinson's LawLAW·013 · RELATED CONCEPTPeak-End RuleLAW·007 · RELATED CONCEPT

Sources

Where a source establishes something narrower than the popular reading of it, the note says so.

  1. [1]

    The goal-gradient hypothesis and maze learning

    C. L. Hull, Psychological Review, 1932

  2. [2]

    The goal-gradient hypothesis resurrected: purchase acceleration, illusionary goal progress, and customer retention

    R. Kivetz, O. Urminsky and Y. Zheng, Journal of Marketing Research, 2006

Continue from here

Each link says what the connection is, so you can tell a principle from an alternative from a thing people mix this up with.

Applies when you are designing

A CheckoutAn Ecommerce ExperienceAn Onboarding Flow

Why this works

The reasoning this entry rests on.

Applied through

Where this shows up as a concrete interface decision.

Practical example

A worked decision where this was the deciding factor.

Check your work

Review passes that test whether this was done properly.

Related concept

Connected closely enough to change how you apply this.