Realist Interpretation of Scientific Theories
Scientific realism provides that the objects of scientific knowledge or theories exist independently of the acts of scientist and that that the scientific theories are true of that objective world. According to Appiah (144) realistic interpretation of theories asserts that the subjects the theory explains are real and theoretical postulates, besides, the corresponding rules of a good theory are as valid as the sentences of the observation language.
Scientific theory mentions a sequence of statements based on a casual element for observed phenomena. As such, the immediate critical component of a scientific theory is that it provides explanations and predictions that can be tested. Realistic interpretation provides the received view of explanation and theory reduction is realistic (Appiah 150). Therefore, it is assumed that theoretical entities of an explanatory theory actually existed. Secondly, a good theory is one that makes reliable predictions. As such, prediction is a component of scientific theory that provides that a theory must not be correct, it just have to predict the right observational phenomenon. This view referred to as instrumentalism that depicts theories as instruments that allow prediction of events. Realistic interpretation asserts that instrumentalist component of scientific theory provides that beliefs are justified only if they are supported by empirical evidence such that the observations can lead to making belief in them. Instrumentalism regards the knowledge objects pragmatically as tools for numerous purposes of human activity and takes reliability rather than truth as scientifically central.
Appiah, Anthony. Thinking It Through: An Introduction to Contemporary Philosophy. Oxford: Oxford University Press, 2003.