Primary data are more important than secondary data
It is preferred to first ask general questions and then more specific questions while interviewing.
Primary data are data that for example is gathered from annual reports.
Interviews can help you to better interpret the results of a quantitative investigation.
最高分值：1分)Interviews are a useful method to collect data in case studies.
An advantage of face-to-face interviews is that the respondents are able to end the interview on every moment.
Foucs group has been widely used for short-run business forecasting
Experiments, observational methods, and questionnaires are the three main data collection methods in survey research
Interview bias is typically introduced by the interviewee.
To obtain honest information from the respondents, the researcher/interviewer should be able to establish rapport and trust with them.