I believe the answer is: in-depth interview
in-depth interview refers to data gathering method where the researchers tried to obtain a certain perspective from the subject by asking them various questions from a particular topic. This type of interview is usually be done if the data taken is in a qualitative form rather than quantitative.
Adrian is a researcher doing a detailed study about attitudes and opinions people have about being childfree. She wants detailed information from each person. An in-depth interview is a method that would be best in use.
