The interview
The interview is another widely used data collection instrument in survey research in the field of library and information science. Interview surveys are similar to questionnaire surveys. An interview schedule is to be prepared that is very similar to the questionnaire. The interview method is a useful means of surveying a representative population sample covering all shades of opinion. The questions asked provide opportunities for qualified answers, and the interviewer may prompt the respondent as necessary. When a number of interviewers are involved in a survey, it is important to ensure that they all understand how the questions are to be put. Prompting should be used to ensure that the respondent has considered all the possibilities while replying to the questions.