- Empiricism (Aristotle, Locke, Berkeley, Hume) Observation & experience ;Rejects, priori reasoning
- Logical Positivism (Vienna Circle) Confirmation of scientific theory by induction/deduction
- Karl Popper’s falsification-All theories should have the nature of falsification.
- Lakatos ‘research programs’;An alternative theory of paradigm
- Fayerabend’s theory of Anarchistic history;Based on humanitarian ground, doesn’t believe in paradigm or standard methods.
- The Bayesian approach;Confirmation of new scientific knowledge influenced by previous success probabilities
Empiricism:
The initial thought in the philosophy of science was mostly dominated by the concept of empiricism. The empiricism emphasizes those aspects of scientific knowledge that are closely related to evidence, especially as discovered in experiments (Chalmers, 1999). The idea of empiricism is that the science is to be based on what we can see, hear and touch rather than on personal opinions or speculative imaginations. Based on Aristotelian theory of tabula rosa, which state that the human mind is like a blank table and that their knowledge comes from experience and perception. Empiricism is a fundamental part of the scientific method that all hypotheses and theories must be tested against observations of the natural world, rather than resting solely on a priori reasoning, intuition, or revelation. Therefore, empiricist claims that the science is methodologically empirical in nature. Some of the classical empiricists were John Locke, George Berkeley, and David Hume (Godfrey-Smith, 2003).
Logical Positivism:
It is a school of philosophy that combines empiricism with rationalism incorporating mathematical logics known as deductions in epistemology.Logical positivism has advocated the observation based theory should be tested through experiments. One drawback of logical positivism is the logical induction. Logical positivism has put forward the concept of generalization through induction. This suggests that the appropriate facts can be established in science by large number of observations under a wide variety of conditions, and there should not be any conflict with the derived law (Chalmers, 1999). It means replication of experiments many times to make it a standard theory.
Karl Popper’s falsification:
Kuhn’s Paradigm:
Lakatos ‘research programs’:
Fayerabend’s theory of Anarchistic history:
The Bayesian approach: