Karl Popper: Introduction, Hypothetico-Deductive Model Sociology YouTube Lecture Handouts

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Karl Popper: Introduction, Hypothetico-Deductive Model Sociology


  • 1902 - 1994
  • Vienna
  • Logical positivism and Marxism
  • Interested in physics
  • Influenced by Einstein՚s theory of relativity and Newton
  • He did not see science as solid, stable or eternally valid.
  • But as a set of conjectures subject to falsification and refutation.
  • “The creation of the scientific status of a theory is its falsifiability or refutability or testability.”
  • A theory which is not refutable is non-scientific
  • ″It is only through this culture of “critical rationalism” that science progresses. Science is inherently critical and democratic, perpetually progressing through trial and error, conjectures and refutations. ″
  • Problem always comes first
  • Gave a sophisticated version of Hypothesisism
  • The central task of philosophy of science is demarcation or Kant՚s problem i.e.. , the problem of identifying the line of demarcation between science and non-science.
  • falsifiability is the line of demarcation
  • A statement is scientific if and only it is falsifiable.

Hypothetico-Deductive Model

  • Model of scientific method
  • Steps:
    • Start with the problem
    • Suggest a hypothesis as a tentative solution
    • Try to falsify by deduction
    • Consider our solution to be corroborated if repeated attempts to falsify it fail


  • Meaning, Truth-likeness or truth-nearness
  • Science cannot present truth
  • Successive scientific theories may be approximate to truth
  • Theories are not absolute truths
  • Scientific observations cannot be represented to be pure as they are theory-dependent


Q. 1. The challenge ahead of scientific community is not to search for confirmations or verifications of the existing theory, but to search for refutation.

According to the statement, the role of scientific community is to________

1. Accept absolute certainty

2. Find falsification

3. Focus on dogmatic thinking

4. None of these

Answer 2

Q. 2. Who said, “The fact that we can predict eclipses does not, therefore, provide a valid reason for explicating that we can predict revolutions.”

1. Marx

2. Popper

3. Kuhn

4. Feyer abend

Answer 2