Final answer:
The subject of this question is Social Studies. Focus groups and in-depth interviews are commonly used in social research as part of exploratory research.
Step-by-step explanation:
The subject of this question is Social Studies. The methods mentioned, such as focus groups and in-depth interviews, are commonly used in social research, specifically in the field of qualitative research. These methods are part of exploratory research and are non-conclusive, meaning they do not aim to provide definitive answers but rather to gather insights and understandings from participants.