Abstract
At first glance, what scientific progress means seems to be a quickly answered question.
It is not easy to think of the sciences without progress; sciences and the notion of progress seem
identical in general. Describing the nature of scientific progress is an important task that will have
practical and theoretical consequences. The approach, which argues that the background on
which sciences are based does not have a historical or cultural character following the positivist
interpretation, accepts sciences as testing the validity of observation and experiment data to a
large extent. On the other hand, the tendency that emphasizes that the complex functioning of
the history of science has an indelible mark on scientific theories prefers to build sciences on a
historical and social basis. How both major approaches ground the idea of scientific progress
profoundly affects both our understanding of the nature of scientific knowledge and the way we
do science. This paper aims to evaluate scientific progress based on the views of prominent
philosophers of science in the twentieth century.