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If you would like to opt out from any audience research or ad targeting from Crowd Science, click on the button below. This will replace any existing crowdscience.com cookies with a single opt-out cookie that will result in Crowd Science's systems ignoring any subsequent visits you make to the websites of Crowd Science-enabled publishers. The opt-out cookie does not contain a unique user number, and so it does not allow your browser to be identified uniquely.

Please note that this the opt-out cookie is per browser. If you use multiple browsers and/or machines you'll need to perform this operation on each. Also, if you erase or otherwise alter your browser's cookie file, you may need to opt out again.

For information on our data collection practices, refer to our privacy policy.

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