For researchers
Verified participants, with the evidence to prove it.
Run surveys and experiments with verified US adults. Every response arrives with its quality evidence, fraud is refunded automatically, and every study can issue a signed report describing its sample.
Why researchers choose Populiva
- Verified participants Studies are open only to people who passed device and network checks and connected a PayPal account that PayPal has verified, one per person. ID checks are available when you need them.
- Evidence on every response Each submission shows the participant's verification level, trust tier, timing compared with others, and plain-language flags, in the review queue and your CSV.
- Automatic fraud refunds If we confirm an account was fraudulent, we refund your lab for its submissions from the past 90 days without you having to ask.
- Signed provenance reports Attach a verifiable report of how your sample was recruited, screened, and checked to your paper or IRB submission.
- Fair pay Every study pays at least $10 an hour. Rejections need a reason, screen-outs are paid, and participants can appeal.
- Your tools Use any survey or experiment tool that takes a link: Qualtrics, jsPsych, Gorilla, oTree, PsychoPy, LimeSurvey, and more. Or automate everything with our API.
| Participant | Level | Time | Evidence |
|---|---|---|---|
| P-7K2M9QX4 | L3 | 11:40 | checks passed trusted |
| P-Q8T1VN6B | L2 | 10:05 | checks passed |
| P-H3ZD4W7R | L2 | 2:51 | under ⅓ of median time pasted 4 times |
| P-M6YC2K9J | L2 | 9:12 | shared device |
How it works
Create your lab (university emails are verified as academic automatically) and add funds by PayPal or invoice. Build a study: choose who can take part from nearly 60 profile attributes, census-matched or balanced quotas, and your own participant groups.
When you launch, eligible participants see it on their study list and a fair, random sample of them get an email. Review submissions as they arrive, then export your data and issue a provenance report.
Built for
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Academic research
Lower fees for verified academic labs, invoices and purchase orders, and reports your IRB and reviewers can check.
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Market and product research
Fast concept tests and user research with participants screened on work, technology, and lifestyle.
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Policy research
Samples matched to the US population or balanced by party, with transparent methods.
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AI evaluation
Pairwise preferences, rubric ratings, rewrites and labels from verified raters and expert panels, with a signed report for every dataset.
Verified participants, with the evidence to prove it.