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Understanding Post-Positivism in Science

Jan 28, 2025

Post-Positivism

Introduction

  • Post-positivism is a philosophical perspective that emerged in the second half of the 20th century.
  • It revises the positivist view that reality can be objectively observed and fully understood.
  • Critiques: Positivism was criticized for being out of line with lived experiences, scientific discoveries, and findings in physics.
  • Post-positivism modifies rather than rejects positivism, moving towards a critical realism.

Key Concepts

  • Naive Realism vs. Critical Realism
    • Positivism: Belief in fully apprehending reality.
    • Post-Positivism: Acknowledges reality but seeks partial, probabilistic understanding.
  • Objective Knowledge
    • Positivism: Full understanding through observation and experimentation.
    • Post-Positivism: Knowledge is probable and can be falsified through future investigations.

Major Figures

  • Karl Popper
    • Criticized logical positivism of the Vienna Circle and Wittgenstein.
    • Introduced the concept of falsification.
    • Science as a deductive process.
    • A hypothesis is provisionally true if it withstands attempts to falsify it.
  • Thomas Kuhn
    • Author of "The Structure of Scientific Revolutions."
    • Argued that scientific knowledge evolves through paradigm shifts.
    • Scientific development is influenced by historical and sociological factors.

Influences from Physics

  • Werner Heisenberg
    • Introduced the uncertainty principle in quantum theory.
    • It's impossible to know both momentum and position of a particle simultaneously.
    • Observation affects the particle, challenging positivist epistemology.
  • Niels Bohr
    • Challenged positivist ontology.
    • Suggested subatomic particles are different, and reality may not be objectively known.

Conclusion

  • Post-positivism is increasingly relevant as it aligns with complex and chaotic findings in modern science.
  • It serves as an alternative framework for scientific inquiry, accommodating the unpredictability and influence of human factors.

Note: For a more comprehensive understanding, it is beneficial to explore the associated video on positivism.