Personal interviewing is most effective when all the people to be interviewed are located in a relatively small geographical area. Otherwise, the time and expense spent in travelling from one person to another makes this type of interviewing economically impractical. Personal inter viewing is usually used when the information needed is too complex to be gathered by another technique. For example, a problem being studied may require the interviewer to probe beyond the more superficial answers that might be obtained with another method.
It is sometimes assumed that personal interviewing is the most accurate of all survey re search techniques. Although personal interviewing may be accurate in many cases, human errors may prevent a researcher from obtaining valid results. Questions perceived by the interview wee as an invasion of privacy or threatening in any way will probably produce false of partially true answers. Also, since the interviewer must interpret the respondent’s statements, a certain amount of information loss results even though the respondent may be answering truthfully.
In spite of the problems, at least two major advantages are provided by this research technique. First, the alert interviewer can generally tell if the respondent is being truthful of if he or she is giving superficial or untrue responses. Second, the interviewer can rephrase questions, give more explanation, or probe more deeply if the initial questions do not produce the information desired. As a result, the information gleaned should be more accurate than that provided by interviews where no one is present to clarify questions or to interpret answers.

A:the interviewer can ask the interviewee questions again in different ways B:the interviewer can ask the interviewee some personal questions C:the initial question do not produce the information desired D:no one is present to clarify questions

“We do not know what is the matter with the quality. Please clarify.”最确切的翻译是( )

A:我们不知道数量有什么问题，请予以澄清。 B:我们不知道数量有什么问题，请予以纠正。 C:我们不知道质量有什么问题，请予以澄清。 D:我们不知道质量有什么问题，请予以纠正。

“We do not know what is the matter with the quality．Please clarify”最确切的翻译是( )。

A:我们不知道数量有什么问题，请予以澄清 B:我们不知道数量有什么问题，请予以纠正 C:哉们不知道质量有什么问题，请予以澄清 D:我们不知道质量有什么问题，请予以纠正

“We do not know what is the matter with the quality．Please clarify．”最确切的翻译是( )

A:我们不知道数量有什么问题，请予以澄清。 B:我们不知道数量有什么问题，请予以纠正。 C:我们不知道质量有什么问题，请予以澄清。 D:我们不知道质量有什么问题，请予以纠正。

“We do not know what is the matter with the quality．Please clarify．”最确切的翻译是( )

A:我们不知道数量有什么问题，请予以澄清。 B:我们不知道数量有什么问题，请予以纠正。 C:我们不知道质量有什么问题，请予以澄清。 D:我们不知道质量有什么问题，请予以纠正。

“We do not know what is the matter with the quality. Please clarify.”最确切的翻译是( )

A:我们不知道数量有什么问题，请予以澄清。 B:我们不知道数量有什么问题，请予以纠正。 C:我们不知道质量有什么问题，请予以澄清。 D:我们不知道质量有什么问题，请予以纠正。

“We do not know what is the matter with the quality．Please clarify．”最确切的翻译是( )

A:我们不知道数量有什么问题，请予以澄清。 B:我们不知道数量有什么问题，请予以纠正。 C:我们不知道质量有什么问题，请予以澄清。 D:我们不知道质量有什么问题，请予以纠正。