In sociological research, a group interview typically involves:

A group interview in sociological research is indeed characterized by in-depth discussions with a small group of people. This format is designed to encourage interaction among participants, allowing them to share perspectives, challenge each other's views, and build on one another's responses. Such dynamics can generate richer, more nuanced data than one-on-one interviews since participants may feel more comfortable expressing their thoughts in a group setting and often stimulate each other’s ideas.

The focus on in-depth discussions also allows for exploring complex topics and social phenomena that might not emerge in individual interviews. This approach can reveal group norms, collective attitudes, and shared experiences, which are valuable for sociological analysis.

In contrast, the other options describe different methods of data collection that do not align with the group interview format. One-on-one questioning is a distinct method focusing solely on the individual participant's responses. Surveys target larger populations but typically lack the depth achieved through group discussions. Finally, the analysis of existing documents involves reviewing pre-existing materials rather than engaging participants in a conversation, which is central to the concept of a group interview.