In field observations, there are many roles of the observer (i.e. level of parti

In field observations, there are many roles of the observer (i.e. level of participation). What was your role in the field? How did it provide data for your research? Was it qualitative or quantitative? (Example, a friend of mine was doing his dissertation for his Ph.D. on homeless people and how they were treated. He lived on the streets as a homeless person for a month to get a first-person perception).