> ## Documentation Index > Fetch the complete documentation index at: https://formbricks.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # Market Research Panel with Prolific > Formbricks surveys can be integrated with Prolifics participant panel easily. This tutorial walks you through the steps on how to access a pool of over 200.000 participants for your research. Prolific is a paid service. You need to fund your account to access the pool of participants. The cost depends on the number of participants you want to reach and the demographics you're targeting. You can get an estimate of the cost with the [Prolific price calculator](https://www.prolific.com/calculator) ## Purpose External research panels are useful when: * You don't have access to enough people who match your target audience * You want to reach a specific demographic * You want to reach a large number of people quickly ## Steps to Follow ### Step 1: Add hidden fields to the Formbricks survey To be able to attribute a completed answer to a research participant, you need to add hidden fields to your Formbricks survey. To do so, edit your survey and scroll down to the Hidden Fields card. Add three fields with the IDs `PROLIFIC_PID`, `STUDY_ID`, and `SESSION_ID`. Hidden fields added ### Step 2: Create an account on Prolific Go to [Prolific](https://app.prolific.co/) and create an account. ### Step 3: Create a study on Prolific Once you're logged in to Prolific, create a new study. Create a study on Prolific ### Step 4: Copy the Formbricks survey link to the Prolific study We connect the Formbricks survey with the Prolific study by copying the survey link from Formbricks and pasting it into the Prolific study: Copy the survey link ### Step 5: Choose URL parameters for attribution To attribute responses to the correct participant, you need to add URL parameters to the Formbricks survey link. The parameters are `PROLIFIC_PID`, `STUDY_ID`, and `SESSION_ID`, exactly like the hidden fields you added. Adding URL parameters to the survey ### Step 6: Update the Formbricks Redirect URL To ensure that participants are redirected back to Prolific after completing the survey, add the redirect URL provided in the Prolific study setup (e.g. `https://app.prolific.co/submissions/complete?cc=I2PWSFRG`) Copy from Prolific: Copy redirect URL Set it up as Redirect URL in the Response Options in Formbricks: Add redirect URL to Formbricks ### Step 7: Preview the study Preview the study using Prolific's [Preview-functionality](https://researcher-help.prolific.com/hc/en-gb/articles/360009222853-Previewing-your-study) Preview study Got to the success screen? Then you're ready to publish your study! Preview complete ### Step 8: Publish the study After you've published the study, you'll get the first responses within a few hours. Prolific is a paid service. You need to fund your account to publish your study. ### That's it! 🎉 Once you've published the survey, you can sit back and watch the responses come in. Prolific will take care of the rest.