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Does P still have value?

Author

Listed:
  • Barth, Nelson Lerner
  • Lourenço, Carlos Eduardo

Abstract

Várias áreas da Ciência - e, em particular, a da Administração - utilizam o paradigma pós-positivista e as técnicas estatísticas do Teste de Hipótese para suas conclusões obtidas a partir de observação ou experimentação. Em que pese o uso generalizado dessas técnicas, percebem-se problemas na interpretação dos achados baseados, forte ou exclusivamente, no valor-p, salientando-se: a) pouco entendimento do verdadeiro significado do valor-p obtido; b) conclusão a partir do valor-p sem examinar o tamanho do efeito; c) p-hacking e HARKing; d) seleção adversa para publicação (ou efeito “gaveta”). Pelo menos um periódico, talvez precipitadamente, simplesmente baniu o uso de valor-p de seus artigos. Discutem-se os cuidados necessários para o uso de valor-p, muitos dos quais não têm sido exigidos ou incentivados na publicação acadêmica.

Suggested Citation

  • Barth, Nelson Lerner & Lourenço, Carlos Eduardo, 2020. "Does P still have value?," RAE - Revista de Administração de Empresas, FGV-EAESP Escola de Administração de Empresas de São Paulo (Brazil), vol. 60(3), February.
  • Handle: RePEc:fgv:eaerae:v:60:y:2020:i:3:a:81144
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