The type of interview that is likely to be used in each of these situations is as follows:

A standardised and structured interview where the aim is to develop response patterns from the views of people. The interview schedule might be designed to combine styles so that comments made by interviewees in relation to specific questions could also be recorded. The situation outlined suggests an exploratory approach to research, and therefore an in-depth interview would be most appropriate. The situation outlined here suggests that an explanatory approach is required in relation to the data collected, and in this case a semi-structured interview is likely to be appropriate.