The main features of interview are -

1. Face to face interaction with respondent is possible

2. It is structured in nature but can be made flexible if the respondent does not understand the question or is not giving the complete answer.

3. The correspondent or the interviewer can ask cross questions or other questions required for obtaining the answer.

4. It is used in survey and participant observation method.

5. The chance of biasness is almost nil.

6. The data can be collected even from those who are illiterate and unable to reply the questionnaires.