I told these people that I didn't want to participate and to leave me alone. I am getting calls on a nightly basis and have attempted to block the phone number. At what point does it become harrassment? I have never known a survey setup this rude, this setup will not take "no" for an answer. I am even on the "Do not call list". I'd like to know how they got my number since I have no children and I don't remember getting a letter from them.
If I can find the correct federal agency, I will be reporting them. Maybe what they do is good, maybe it is bad. They need to respect what they are told on the other end and make it final.
I called the CDC and they confirmed this number as being part of a legitimate survey being done at the University of Chicago. You can call the university also if you like to double check.
Always... if you don't feel comfortable answering any of the questions then say so. I suggest if you are still getting the phone calls after asking them not to call again contact the University of Chicago. The phone number is 1-866-999-3340.