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Sociology Optional PYQ Solutions · Model answer

Why is random sampling said to have more reliability and validity in research?

  • UPSC 2015
  • Research Methods and Analysis

Random sampling is the procedure by which every unit in a defined population is given a known, non-zero probability of selection, typically an equal one, with the actual draw left to chance rather than to any human judgement.

You are reading the opening of the model answer. The full answer is part of Sociology Optional PYQ Solutions.

What the full answer covers

  • Why Randomisation Removes Bias at the Point of Selection
  • How Known Selection Probabilities License Statistical Inference
  • Reliability: Why Random Sampling Yields Consistent Results
  • External Validity: Why a Random Sample Can Stand for the Population
  • The Critical Caveat: What Random Sampling Does Not Secure

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