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Descriptor English: Sample Size
Descriptor Spanish: Tamaño de la Muestra
Descriptor tamaño de la muestra
Scope note: Número de unidades (personas, animales, pacientes, circunstancias específicas, etc.) en una población en estudio. El tamaño de la muestra debe ser lo suficientemente grande como para que exista una alta probabilidad de detectar una diferencia real entre los dos grupos.
Descriptor Portuguese: Tamanho da Amostra
Descriptor French: Taille de l'échantillon
Entry term(s): Sample Sizes
Size, Sample
Sizes, Sample
Tree number(s): E05.318.370.762
E05.581.500.902
N05.715.360.325.692
N06.850.520.445.762
RDF Unique Identifier: https://id.nlm.nih.gov/mesh/D018401
Scope note: 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)
Annotation: usually NIM with specific population or circumstances sampled (IM); not restricted to epidemiology
Allowable Qualifiers: No qualifiers
Public MeSH Note: 95
History Note: 95
DeCS ID: 32037
Unique ID: D018401
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 1995/01/01
Date of Entry: 1994/02/28
Revision Date: 2018/06/29
Sample Size - Preferred
Concept UI M0027628
Scope note 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)
Preferred term Sample Size
Entry term(s) Sample Sizes
Size, Sample
Sizes, Sample



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