Last week in class, a student said, “Sir, whenever LinkedIn shows 85% complete, I can’t stop until it hits 100%.” We laughed because we’ve all felt that little itch. That itch has a name: the Zeigarnik Effect—our mind’s tendency to keep unfinished tasks alive and tugging at our attention.
We tend to remember and feel drawn to incomplete work more than to finished work. This idea dates back to psychologist Bluma Zeigarnik, who, after observing servers recalling unpaid orders more accurately than paid ones, conducted lab studies in 1927 that showed interrupted tasks were recalled more readily than completed ones.
There’s a closely related cousin you should know: the Ovsiankina Effect—our urge to return to and complete interrupted tasks. If Zeigarnik is about memory and mental “tension,” Ovsiankina is about resumption—coming back to finish. Recent meta-analytic work finds a weighted resumption rate of ~67% across studies, suggesting that people do try to pick up where they left off. For a designer, that’s gold: if you make “resume” obvious and easy, you’re working with human nature.
Use a progress tracker that reveals remaining steps: “3 of 5 done — Add billing to finish.” The key is specificity (“Add tax info”) rather than vague percentages. Specific, named gaps create a gentle pull to complete, which aligns with the effect’s memory/attention dynamics. (Yes, this is why “profile completeness” widgets work so well.)
If users bounce mid-flow, greet them with “Pick up where you left off” (one click). The Ovsiankina literature shows we’re naturally inclined to resume; your job is to make the path short and visible: a Resume button, a saved state, or a smart deep link.
Borrow from the plan-making research: prompt users to set a tiny plan at the moment of interruption—“We’ll remind you on Tuesday at 9 am to upload your PAN card?”—because specific plans lower intrusive thoughts and boost follow-through.
Progress meters and checklists are powerful; they can also slide into dark patterns. Keep defaults reversible, explain why you’re asking for the next step, and always allow “Not now” without shame. That’s how you earn trust (and better long-term completion).
When a user completes a step, acknowledge it immediately (“Address saved ✓”) and update the checklist. This reduces cognitive tension from the Zeigarnik side while preserving momentum for the next step. NN/g also notes how thoughtful progress indicators make waiting and multi-step processes more tolerable.
Q1. Is the Zeigarnik Effect “always on”?
Not exactly. Context matters, and research findings vary in strength. But as a design heuristic, treating unfinished steps as attention magnets—and making resumption obvious—works well in practice.
Q2. Can this be manipulative?
Yes, if misused. Keep progress truthful, provide “Not now”, and avoid guilt tactics. Remember: unfinished work can harm well-being; design to reduce stress, not increase it.
Q3. What’s one change I can make tomorrow?
Replace a vague “You’re 60% done” with a 3-item checklist that identifies the missing pieces and adds a “Resume” button on the home screen. Then measure completion lift.