Analytical, Diagnostic and Therapeutic Techniques, and Equipment

Sample Size

The number of units (persons, animals, patients, specified circumstances, etc.) in a population to be studied. The sample size should be big enough to have a high likelihood of detecting a true difference between two groups. (From Wassertheil-Smoller, Biostatistics and Epidemiology, 1990, p95)

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The number of units (persons, animals, patients, specified circumstances, etc.) in a population to be studied. The sample size should be big enough to have a high likelihood of detecting a true difference between two groups. (From Wassertheil-Smoller, Biostatistics and Epidemiology, 1990, p95)

MeSH Record

Classification

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MeSH Record

Synonyms

3 entry terms
  • Sample Sizes
  • Size, Sample
  • Sizes, Sample

MeSH Record

Indexing Annotation

usually NIM with specific population or circumstances sampled (IM); not restricted to epidemiology

MeSH Record

History Note

95

MeSH Hierarchy

Tree Numbers

  1. E05.318w.370.762
  2. E05.581w.500w.902
  3. N05.715w.360.325.692
  4. N06.850w.520w.445.762

AMA Style

References

  1. National Library of Medicine. Sample Size. Medical Subject Headings (MeSH). 2026. Unique ID D018401. http://id.nlm.nih.gov/mesh/2026/D018401
  2. Sample Size. In: Wikidata. https://www.wikidata.org/wiki/Q70443487