Besides, the interviewees are responsible for the confidentiality of the interviewers. This group includes presenters, ringside commentators, ring announcers and backstage interviewers. This group includes presenters, ringside commentators, ring announcers, backstage interviewers, pre-show hosts and analysts. Random errors are caused by unintended mistakes by respondents, interviewers and/or coders. Upcoming referees, ring announcers, commentators, and backstage interviewers also train at the Performance Center. Care must be taken to avoid biases due to interviewers and their demand characteristics. The term is applied universally to wrestlers, backstage interviewers, and managers/valets. Birt then publicly questioned the confrontational approach of certain TV and radio interviewers. By utilizing the HTTs as the primary interviewers and data analysts, their effectiveness was constrained. Their superficial charm may be misinterpreted by interviewers as charisma. Two men appear at the Newton home posing as interviewers working on a national survey. Emin openly discusses her 1998 installation "My Bed" for audiences and interviewers alike. Franklin did not like to discuss her early pregnancies with interviewers. The division head, John Hulme, hired Widlar despite objections from the first round interviewers. Unlike many interviewers, King has a direct, non-confrontational approach.