MARMARA JOURNAL OF COMMUNICATION, sa.23, ss.49-59, 2015 (ESCI)
In this study, it is aimed to outline "three world theories" of Karl Popper and Jurgen Habermas comparatively. In this context, it is also aimed to assess Habermas' critics as "positivist" to Karl Popper who is an opponent to positivism inside it and his abstraction on the "three world theory" under the influence of Karl Popper. The differences between their opinions stem from their main arguments about the methodology of natural and social sciences.