Many surveys ask for some of the same information I have already provided. Why?

MindField Online maintains a very strict privacy policy regarding our panel members' profile information. We use this information to match your interests with projects and surveys suited to your tastes. To ensure that it is indeed you that is returning to take a survey, it is sometimes necessary to include profile questions in the surveys themselves. Also, when you sign up with MindField Online, we ask about other people living in your household, so we can include their participation in upcoming projects as well. Surveys for which others in your home qualify may require some profile information since we do not always have their info in our database. Additionaly, we will never provide your profile information to our third party clients without your knowledge.