A type of in-depth interview (see “Interview, In-Depth”) used in media and market research in which one interviewer addresses his/her questions at the same time to a pair of research participants who are familiar with each other. This one-to-two interview is usually used to help relax participants, to encourage more candid responses and sometimes, to explore the influence of relationships on decision making. It is also used with youth, to ensure that participants don’t feel intimidated by the interview process, thus avoiding potential response bias (see “Bias, Response”).