The term research philosophy refers to a system of beliefs and assumptions about the development of knowledge. In layman’s terms, a research philosophy is the choice a researcher makes on how to pursue his research, consciously or subconsciously. Scholars have identified five of the most prominent research philosophies in academia, however, choosing one is a matter of debate. (main source: Saunders, Mark & Lewis, P & Thornhill, A. (2009). Understanding research philosophies and approaches. Research Methods for Business Students. 4. 106-135.)
Supporters of critical realism claim that reality is much more than our senses allow us to see, preferring to focus on the bigger picture.