Why do you use the phone to conduct the survey?
We are always looking for ways to be as economical as possible while making your participation as convenient for you as we can. When you participate by phone, it saves the costs of sending an interviewer to visit you at home. Telephone interviewing also provides you some additional flexibility to participate from your home, office, or someplace else. Telephone interviewing even makes it possible for you to complete the interview in multiple segments if you choose. If you prefer doing the interview in person, just let us know and we will make every effort to send an interviewer to your home or another location.