---
title: For study participants
description: For study participants
---
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1. [RealEye Knowledge Base](http://support.realeye.io/?hsLang=en)
2. [Managing Participants](http://support.realeye.io/managing-participants?hsLang=en)
# For study participants
---
If you were invited to take part in the eye-tracking test (even as a part of a bigger study), but you have doubts about enabling webcam access, please read the explanation below on how the RealEye webcam eye-tracking works.
#### **TL;DR: WE NEVER RECORD YOUR FACE or any image from your webcam**
Webcam eye-tracking is an innovative method that predicts a person's gaze point. We use the computing power of a regular PC/laptop/smartphone to run AI (Deep neural network) that analyzes images coming from a webcam. The AI detects a panelist's face, pupils and predicts a gaze point. All of this is performed **entirely in a web browser in real time**. Thanks to this, panelists do not have to worry about their privacy. **We do not send any images or sounds to our servers.** We only store the gaze point predictions from our AI in the form of basic text data similar to "Timestamp: 10, GazePointX: 200, GazePointY: 330".
How to take part in such a test:
- use a **desktop** device like a laptop/PC/Mac(book) - unless a study allows mobile devices,
- use **Chrome** web browser,
- make sure you have a good quality, working webcam plugged in,
- make a webcam very steady and below your eyes level,
- make sure you're in **good lighting conditions** - the light source is in front of you and illuminates your face evenly,
- don't rush through the calibration process,
- if you wear glasses, make sure there are no reflections on them (**glasses MUST NOT limit pupils' visibility** for the webcam),
- try to keep your head still during the whole test,
- if you're using a laptop, make sure it's plugged in,
- (for Screen Recording tests) please, share your screen or browser window (NOT a tab) when asked.
**Your response is anonymous** - we assign a participant Id to you, and based on that, we differentiate the results from each other. At the end of a test, you may be asked about your name, gender, and age - **this part is never obligatory, but providing your gender and age data can help analyze demographic results.**
See what a sample study looks like from a participant's perspective:
We were trusted by many researchers from universities all over the world, here you can find some of them:
- [Getting started](http://support.realeye.io/getting-started?hsLang=en)
- [(Webcam) Eye-Tracking Basics](http://support.realeye.io/webcam-eye-tracking-basics?hsLang=en#main-content)
- [RealEye accuracy](http://support.realeye.io/webcam-eye-tracking-basics?hsLang=en#realeye-accuracy)
- [Licenses & Pricing](http://support.realeye.io/licenses-pricing?hsLang=en)
- [Account Settings](http://support.realeye.io/account-settings?hsLang=en)
- [Study Setup & Settings](http://support.realeye.io/study-setup-settings?hsLang=en#main-content)
- [Study Types](http://support.realeye.io/study-setup-settings?hsLang=en#study-types)
- [Content Setup & Stimuli (Items) Settings](http://support.realeye.io/content-setup-stimuli-items-settings?hsLang=en)
- [Managing Participants](http://support.realeye.io/managing-participants?hsLang=en)
- [Analyzing Study Results](http://support.realeye.io/analyzing-study-results?hsLang=en)
- [Advanced Features & Integrations](http://support.realeye.io/advanced-features-integrations?hsLang=en)
- [Security & Privacy](http://support.realeye.io/security-privacy?hsLang=en)
- [Troubleshooting](http://support.realeye.io/troubleshooting?hsLang=en)
- [Ghost articles](http://support.realeye.io/ghost-articles?hsLang=en)
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