Written and maintained by CASRAI Editorial Board
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Prolific (often searched as “Prolific Academic”) is an online platform that, in its own words, connects researchers, AI developers and product teams with real people who take part in studies online. This guide is for researchers deciding whether to recruit through it, and for students asking what a “Prolific dissertation” study involves. It covers how the platform pays on each side, what its filters can and cannot guarantee, and how to report it in a methods section. Platform policies were read on the dates shown in the Sources section.
What Prolific is
Prolific is a participant-recruitment marketplace. Researchers publish a study, choose who may see it, and pay participants through the platform; participants complete the study and are compensated for their time. Researchers can keep using their existing survey or experiment software and link it to Prolific, and they can collect hundreds or thousands of responses in a short time, according to Prolific’s researcher help centre. The company’s about page names Phelim Bradley, Ph.D., as CEO and co-founder.
Prolific is a recruitment and payment layer, not a survey tool. Questionnaire design, consent text and data storage stay in whatever tool and ethics approval you already use.
Who runs it and what it covers
Prolific is operated by the company of the same name (prolific.com). Its help centre is split into a researcher side and a participant side, and the two sides publish different rules. For company contact details, use Prolific’s own contact page rather than a third-party listing, since those pages can lag behind the company’s current details.
Prolific does not publish, in the help articles read for this guide, a fixed list of participant countries. What the platform does document is a screening filter called current country of residence (alongside country of birth and nationality), where researchers choose where participants should be located. Age and current country of residence are the two mandatory participant questions and are verified automatically; most other filter answers are self-reported.
How participants get paid
Short answer: the researcher sets a fixed base reward for each participant, Prolific enforces a minimum hourly rate, and payment is released when the researcher approves the submission. Participants then cash out; Prolific states it does not charge for cashing out.
- Minimum rate. Prolific’s payment principles require that a reward meets a minimum of £6 / $8 per hour, and recommend at least £9 / $12 per hour.
- Bonuses. Bonuses sit on top of the base reward. They do not count toward the minimum and cannot be used to lift a low base reward up to it.
- Approval equals payment. Per the payment principles, “approved means paid”: payment is processed at approval, with no separate confirmation step.
- Auto-approval. Submissions still in review are auto-approved and paid at 21 days.
- Rejections. A researcher may reject and not pay a submission only if it meets Prolific’s rejection criteria, and Prolific advises keeping rejections to a minimum. See attention checks on Prolific for what counts.
- Cash-out. The participant help centre says payouts go through PayPal using Hyperwallet, that Prolific does not charge fees for cashing out, and that PayPal may charge on currency conversion.
The payment principles mention a platform fee on bonuses but state no amount, so budget from the cost figure Prolific displays when you set up your study.
How researchers use it
The steps below describe only what Prolific’s help articles on filters and payment document; interface labels may change.
- Set up the study in your own survey tool and link it to a Prolific study.
- Set the base reward so it clears the minimum hourly rate for your real completion time.
- In the audience section, add filters. A live count of matching active participants appears; if fewer than five qualify, the exact number is hidden.
- Combine filters deliberately. Several options inside one filter are treated as OR; separate filters default to AND, and a toggle switches them to OR.
- Do eligibility screening through filters, not inside your study. If no built-in filter fits, Prolific describes custom screening as the alternative.
- Expect roughly a 40-50% response rate from the eligible pool when sizing the audience.
- Review submissions and approve them, which triggers payment.
What does “Prolific dissertation” mean?
It is not an official Prolific product. Searchers use the phrase for a student or thesis project that collects its data from Prolific participants. Treat it as an ordinary online-sample design: your institution’s ethics review, participant information and consent, and data-management plan apply exactly as they would for any other recruitment channel. Prolific publishes an article titled “Methodological Justification Pack: Writing About Prolific in Your Research” in its researcher help centre, which is the platform’s own starting point for write-ups.
Reporting Prolific in a methods section
Editorial suggestion, not a Prolific rule: state the platform, the filters applied (with the self-report caveat), the base reward and hourly rate, the date range of data collection, the attention-check policy and number of exclusions. Our guide to detecting careless responding covers how to document exclusions.
Strengths and limits
- Documented pay floor. The enforced minimum rate and “approved means paid” rule are published, which helps when justifying cost to an ethics committee or funder.
- Targeting by filter. Built-in prescreening covers many demographic criteria, and a live count shows feasibility before launch.
- Self-reported filters. Most filter answers are self-reported, English fluency is not guaranteed unless you filter for it, and participants cannot see which filters you used.
- Sample composition. Prolific’s own guidance notes that without prescreeners or sample balancing the sample tends to skew female, younger and more highly educated; representative samples have their own rules about which other screeners can be combined.
- Not a verdict on quality. Published comparisons of platforms exist, and our Prolific vs MTurk comparison summarises them; this guide gives no legitimacy rating of its own.
Alternatives
| Platform | Where to read more |
|---|---|
| Amazon Mechanical Turk | What it was and why it closed; data-quality issues in MTurk data quality |
| CloudResearch | CloudResearch: Connect vs Prime Panels |
FAQ
How do Prolific participants get paid?
Researchers pay a fixed base reward per participant, subject to a minimum of £6 / $8 per hour. Payment is processed when the submission is approved or auto-approved at 21 days, and participants cash out via PayPal (through Hyperwallet) without a Prolific cash-out fee.
What is Prolific’s address?
Prolific lists its company contact details on its own contact page at prolific.com; use that page for the current address instead of a third-party listing.
What countries are eligible for Prolific?
Prolific’s help articles read for this guide do not list eligible countries. Researchers target location with the current country of residence filter, and prospective participants should check the availability shown during Prolific sign-up.
Is Prolific legit?
This guide does not issue legitimacy verdicts. It reports what Prolific’s published policies say about pay, approval and rejection, and points to peer-reviewed comparisons through the linked pages.
Where do I find the Prolific sign-in?
From the sign-in link on prolific.com. This guide does not give login instructions.
Sources
- Prolific, About: prolific.com/about (read 2026-11-07)
- Prolific researcher help, Payment principles: article 445230 (read 2026-11-07)
- Prolific researcher help, What is Prolific?: article 445101 (read 2026-11-07)
- Prolific researcher help, How do I use Prolific’s filters?: article 445159 (read 2026-11-07)
- Prolific participant help, Cashing out with PayPal: article 445067 (read 2026-11-07)
