The Rasmussen and Fox News polls, fielded by Rasmussen subsidiary Pulse Opinion Research, both use an automated, recorded voice method to ask questions, while the live-interview surveys conducted by CBS News/New York Times and Reuters/Ipsos and the University of Cincinnati use more traditional live-interviewer methods.
Several quality control measures of the interviewers' methods were incorporated into the study design.
The interviewers used cognitive interviewing methods [ 37] to assist the respondents in answering the questions.
The interviews will be conducted by interviewers who have received a training in qualitative interview methods.
The care-manager and the interviewer informed each participant about the study and the interview methods.
The interviewer is a clinical psychiatrist and researcher with courses in qualitative interviewing methods (Masters in Education).
Firstly, the influence of each of the 16 plant food-groups and dietary fibre on breast cancer risk was examined as continuous variables, while adjusting for diet interviewer, season of diet interview, method version, age at baseline, past food habit change and total energy (basic model).
Multiple mailings, standardized telephone interviews, interviewer training, and methods for maximizing response rates are well established in the Health Plan Employer Data and Information Set HEDISspecificationsons [ 22].
The interviewer used methods such as 'probing' to help achieve depth in the data [ 27].
The training consisted of lectures on the structured questionnaire, interviewer skills, methods of data collection, negotiation skills and team building.
At both stages, data were collected by trained interviewers using the computer-assisted telephone interview method.
