Artigo de periodico

Sample allocation balancing overall representativeness and stratum precision (2018)

• Autor:
  • Diaz-Quijano, Fredi Alexander Diaz
• Autor USP: QUIJANO, FREDI ALEXANDER DIAZ - FSP
• Unidade: FSP
• DOI: 10.1016/j.annepidem.2018.04.011
• Subjects: PESQUISA; AMOSTRAGEM; PRECISÃO DO TESTE; REPRESENTAÇÃO
• Language: Inglês
• Abstract: Purpose:In large-scale surveys, it is often necessary to distribute a preset sample size among a number ofstrata. Researchers must make a decision between prioritizing overall representativeness or precision ofstratum estimates. Hence, I evaluated different sample allocation strategies based on stratum size.Methods:The strategies evaluated herein included allocation proportional to stratum population; equalsample for all strata; and proportional to the natural logarithm, cubic root, and square root of the stratumpopulation. This study considered the fact that, from a preset sample size, the dispersion index of stratumsampling fractions is correlated with the population estimator error and the dispersion index of stratum-specific sampling errors would measure the inequality in precision distribution. Identification of abalanced and efficient strategy was based on comparing those both dispersion indices.Results:Balance and efficiency of the strategies changed depending on overall sample size. As the sampleto be distributed increased, the most efficient allocation strategies were equal sample for each stratum;proportional to the logarithm, to the cubic root, to square root; and that proportional to the stratumpopulation, respectively.Conclusions:Depending on sample size, each of the strategies evaluated could be considered in opti-mizing the sample to keep both overall representativeness and stratum-specific precision
• Imprenta:
  • Publisher place: New York
  • Date published: 2018
• Source:
  • Título do periódico: Annals of epidemiology
  • ISSN: 1047-2797
  • Volume/Número/Paginação/Ano: v.28, n.8, p.570-575, 2018

Informações sobre o DOI: 10.1016/j.annepidem.2018.04.011 (Fonte: oaDOI API)
• Este periódico é de assinatura
• Este artigo NÃO é de acesso aberto
  
• Cor do Acesso Aberto: closed

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• ABNT

  DIAZ-QUIJANO, Fredi Alexander Diaz. Sample allocation balancing overall representativeness and stratum precision. Annals of epidemiology, v. 28, n. 8, p. 570-575, 2018Tradução . . Disponível em: https://doi.org/10.1016/j.annepidem.2018.04.011. Acesso em: 06 jun. 2024.

• APA

  Diaz-Quijano, F. A. D. (2018). Sample allocation balancing overall representativeness and stratum precision. Annals of epidemiology, 28( 8), 570-575. doi:10.1016/j.annepidem.2018.04.011

• NLM

  Diaz-Quijano FAD. Sample allocation balancing overall representativeness and stratum precision [Internet]. Annals of epidemiology. 2018 ;28( 8): 570-575.[citado 2024 jun. 06 ] Available from: https://doi.org/10.1016/j.annepidem.2018.04.011

• Vancouver

  Diaz-Quijano FAD. Sample allocation balancing overall representativeness and stratum precision [Internet]. Annals of epidemiology. 2018 ;28( 8): 570-575.[citado 2024 jun. 06 ] Available from: https://doi.org/10.1016/j.annepidem.2018.04.011

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