单项选择题

Sometimes a researcher cannot get valid results because （）

A．the information needed is too complex to be gathered
B．personal interviewing is the most accurate of all survey research techniques
C．personal interviewing is not as effective as other research techniques
D．both interviewer and interviewee may make mistakes during the interviewing

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热门试题

单项选择题

It can be concluded from the passage that when all the people to be interviewed are located in a relatively big geographical area （）

A．personal interviewing is most effective
B．personal interviewing is economically impractical
C．personal interviewing is the only technique to get information
D．telephone interviewing may not be used

单项选择题

In the second paragraph, the phrase an invasion of privacy most probably means（）

A．an unpleasant conversation
B．a challenge to interviewee's professional skills
C．an interference with interviewee's personal affairs
D．an interference with interviewee's hobby