It is not unusual, for example, to find participant observers using interviews.
It emphasizes the requirement for a possibly constructivist participant observer in the second order case:
This may cross a line between science and activism, but is within the anthropological tradition of study by the participant observer.
When a researcher becomes a part of the participants in the situation under observation, it is called a participant observer.
In studies of this type, the researcher may gather detailed field notes as a participant observer or passive observer.
What a participant observer can offer is the perspective on that story from the inside out.
He was one of the first participant observers and an ethnologist.
Firstly, participant observers may sometimes lose their objectivity as a result of participating in the study.
Secondly, participant observers may unduly influence the individuals whose behavior they are recording.
Furthermore, it is difficult for the participant observer not to exert some influence on the events that are being observed.