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It’s always a good idea to give your participants a person to contact if they have questions, concerns, or suggestions about the study. We usually do this by adding a sentence with a "mailto:" email link at the end of the invitation (whether that invitation is an email message or a web page that you’ve set up). It typically goes like this:
If you have any questions or comments about this study, please email us at research@acmesupply.com
While we don’t get many emails from this, it is important to be able help participants if they need it. The most common issues we've seen are:
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