Answer:Participant observation
Explanation:Participant observation is a method of gathering data by using qualitative research , it is used mostly in cultural anthropology, sociology , human geography and social psychology.
The main purpose is to get closer to the group that one is studying and be able to get an inside look in their overall living and behavior or any other aspects studying them in their natural environment , this may mean getting involved for a long period of time with the group and taking field notes while making daily observations.