A guide for authors and readers of the American Society for Nutrition Journals on the proper use of P values and strategies that promote transparency and improve research reproducibility.
Am J Clin Nutr
; 114(4): 1280-1285, 2021 10 04.
Article
em En
| MEDLINE
| ID: mdl-34258613
ABSTRACT
Two questions regarding the scientific literature have become grist for public discussion:
1) what place should P values have in reporting the results of studies? 2) How should the perceived difficulty in replicating the results reported in published studies be addressed? We consider these questions to be 2 sides of the same coin; failing to address them can lead to an incomplete or incorrect message being sent to the reader. If P values (which are derived from the estimate of the effect size and a measure of the precision of the estimate of the effect) are used improperly, for example reporting only significant findings, or reporting P values without account for multiple comparisons, or failing to indicate the number of tests performed, the scientific record can be biased. Moreover, if there is a lack of transparency in the conduct of a study and reporting of study results, it will not be possible to repeat a study in a manner that allows inferences from the original study to be reproduced or to design and conduct a different experiment whose aim is to confirm the original study's findings. The goal of this article is to discuss how P values can be used in a manner that is consistent with the scientific method, and to increase transparency and reproducibility in the conduct and analysis of nutrition research.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Publicações Periódicas como Assunto
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Editoração
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Projetos de Pesquisa
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Reprodutibilidade dos Testes
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Revelação
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Ciências da Nutrição
Limite:
Humans
País/Região como assunto:
America do norte
Idioma:
En
Revista:
Am J Clin Nutr
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Estados Unidos