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 respo
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
When we use a word in speech and writing, its most obvious purpose is to point to some thing or relation or property. This is the word’s" meaning."
Let us suppose that the one grandparent of the dog was a collie, another was an Irish terrier, another a fox terrier, and the fourth a bulldog. We can express these facts equally scientifically and objectively by-saying that he is a dog of mixed breed. We have in no way gone be yond the requirements of exact scientific description.
Suppose, however, that we had called the same animal a" mongrel". The matter is more complicated. We have used a word which objectively means the same as" dog of mixed breed", but which also arouse in our hearers an emotional attitude of disapproval toward that particular dog. A word, therefore, can not only indicate an object; but can also suggest an emotional attitude toward it. Such suggestion of an emotional attitude does go beyond exact and scientific
A. scientific subjects, emotional words are often used to make meaning clearer
B. debatable questions, objective terms are generally used to help clarify meanings
C. scientific subjects, objective terms are generally used, in groups to avoid controversy
D. debatable questions, emotional terms are used very often
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