In scientific historiography, how does Thomas Kuhn define a 'paradigm shift' within evolutionary scientific progress?

Answer and explanation

Correct answer: B. A non-cumulative revolutionary replacement of an existing theoretical framework triggered by mounting anomalies

  1. Step 1: Kuhn's The Structure of Scientific Revolutions distinguishes between normal science and revolutionary science.
  2. Step 2: When normal science encounters anomalies that cannot be resolved within the existing paradigm, a crisis ensues.
  3. Step 3: A paradigm shift occurs when the scientific community abandons the old worldview in favor of an incommensurable new model (e.g., Copernican, Newtonian to Einsteinian).
Answer
A non-cumulative revolutionary replacement of an existing theoretical framework triggered by mounting anomalies.
Why not the others: Paradigm shifts are discontinuous and revolutionary, not simple linear accumulations.

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