Study setup and management
101 articles
How to use custom screening to recruit specific participants
Which participants will take my study?
Bring your own participants
Participant groups
How do I use Prolific's demographic prescreening?
How do I balance my sample within demographics?
What are representative samples on Prolific
Using representative samples on Prolific - FAQs
How can I invite specific participants to my study?
How can I prevent specific participants from accessing my study?
Can I screen participants within my study?Learn when to screen out participants in a study on Prolific and how to do it correctly.
What are deprecated screening questions?Learn what happens when prescreening questions are deprecated or removed, and how to keep your studies running smoothly.
How to recruit eligible participants using screeners and sub-conditions
How do I run a pilot study on Prolific?
Can I run studies simultaneously (concurrently)?
How do I prescreen for participants who are fluent in multiple languages?
Custom completion codes
How do I run studies with couples?
How do I run a diary study?
Can I randomly assign participants to conditions on Prolific?
How do I set up a longitudinal / multi-part study?
How do I run video interviews & focus groups?Run interview and focus group studies on Prolific with guidance on recruitment, scheduling, and payment.
Can I run studies that deceive participants?
Can I run dyadic studies on Prolific?
How to run longitudinal studies using waves
Submission statuses explained
How to prevent and detect AI or Large Language Model (LLM) use in studies
Approving, rejecting, and returning submissions
Exporting Prolific demographic data
Matching data between Prolific and your external study software
Participants are completing my study with 'NOCODE' or the wrong completion code
My participants don't match the prescreening I selected
How do I report data quality concerns to you?
Why do I have missing data?
Why do I have more participants than requested?
A participant took the study with an incompatible device
Can I ask a participant to redo their submission?
Who should I reject?
How do I reject or return a submission?
How do I approve and pay a participant?
Submission approval rules and timeframes
Understanding the Limitations of reCAPTCHA Bot Detection in Research
Bulk rejecting exceptionally fast submissions