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NewStudy design

Show each participant several concepts in a randomized order

Participants see two or more stimuli one at a time, in a randomized order, and answer the same questions about each one.

Maarten Claes

At a glance

  • Set how many stimuli each participant sees: two or more makes it sequential monadic
  • Stimuli appear one at a time, in a randomized order for each participant
  • The same evaluation questions repeat for every stimulus
  • Parameters adapt the question wording to the concept on screen
  • Mix images, videos, Figma, Canva, website links and PDFs in one set

Release details

Shipped
Area
Study design
Kind
New
Author
Maarten Claes
  • Testing
  • Methodology
  • Bias reduction
Read the docs guide

Show someone three pack designs in the same order every time and the first one sets the bar. The second gets judged against it, and by the third the participant is tired of talking about soap. Your winner might simply be the design that went first. The usual workaround is to build one study per order and split the sample across them by hand, which triples the setup and the links to manage.

Sixty seconds on sequential monadic stimuli, how the order is randomized and what it changes, no sound needed.

How it works

  • Build a randomized stimulus. Add your concepts to the stimulus table in the topic guide. Images, videos, YouTube, Figma, Canva, website links and PDFs can sit in the same set.

  • Set how many each participant sees. One stimulus per participant makes it a monadic test. Two or more makes it sequential monadic.

  • Conveo sets the order. Each participant gets the stimuli one at a time, in a randomized order. Conveo favors the concepts shown least so far, which keeps exposure spread across the set.

  • The same questions repeat for each. The AI research assistant asks your evaluation questions about every stimulus in turn. Parameters let the wording name the concept on screen, so each question reads naturally.

Research teams asked for it in five situations

These come from teams in consumer goods, food and drink, household and personal care, quick-service restaurants, toys and games, animal health, media and research agencies. We kept them anonymous.

  • Pack and design routes. Several designs for the same product, each judged on its own before the next appears.

  • Concept screens after a short screener. A run of concepts back to back, with identical questions for each, for everyone who qualifies.

  • Visuals and ad routes. Creative options evaluated one by one, so no route wins just by going first.

  • One study for every order. Agencies asked to stop building a separate study for each rotation and splitting cells by hand.

  • Individual reads, then a head-to-head. Each option rated alone first, then the set compared and one picked at the end.

See how every route gets a fair turn

Follow the stimulus table, randomized orders, repeated questions and the evidence trail through one study.

What this means for your research

One study link now covers every order. You get a read on each concept from the same people, with order effects spread across the concepts, and you need fewer participants than when each concept gets its own group.

Know the limits. Balancing is automatic but approximate: it spreads exposure, and it does not guarantee equal completed samples per concept or a statistically valid comparison on its own. Later concepts can still be judged in the light of earlier ones. Check completed counts per concept and add quotas when you need firm cell sizes. When any comparison would skew the read, show one stimulus per participant with pure monadic testing.

Read the stimuli guide for the stimulus table, parameters and groups.