What is key informant interview?
Key informant interviews are qualitative in-depth interviews with people who know what is going on in the community. The purpose of key informant interviews is to collect information from a wide range of people—including community leaders, professionals, or residents—who have first-hand knowledge about the community. What is key informant? A key informant is an expert source of information. The key informant technique is an ethnographic research method which was originally used in the field of cultural anthropology and is now being used more widely in other branches of social science investigation.