Use of the correlation coefficient in agricultural sciences: problems, pitfalls and how to deal with them

This paper discusses a number of aspects concerning the analysis, interpretation and reporting of correlations in agricultural sciences. Various problems that one might encounter with these aspects are identified, and suggestions of how to overcome these problems are proposed. Some of the examples p...

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Main Authors: Marcin Kozak, Wojtek Krzanowski, MaŁgorzata Tartanus
Format: Article
Language:English
Published: Academia Brasileira de Ciências 2012-12-01
Series:Anais da Academia Brasileira de Ciências
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000400029
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author Marcin Kozak
Wojtek Krzanowski
MaŁgorzata Tartanus
author_facet Marcin Kozak
Wojtek Krzanowski
MaŁgorzata Tartanus
author_sort Marcin Kozak
collection DOAJ
description This paper discusses a number of aspects concerning the analysis, interpretation and reporting of correlations in agricultural sciences. Various problems that one might encounter with these aspects are identified, and suggestions of how to overcome these problems are proposed. Some of the examples presented show how mistaken and even misleading the interpretation of correlation can be when one ignores simple rules of analysis.<br>Este artigo discute uma série de aspectos relacionados a análise, interpretação e forma de relatar correlações em ciências Agrárias. São identificados vários problemas que podem ser encontrados, bem como feitas sugestões de como superá-los. Alguns dos exemplos apresentados mostram quão erradas e mesmo enganosas podem ser as interpretações de correlação quando regras simples de análise são ignoradas.
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spelling doaj.art-023d7fb30d66490cb98746dd6980eb082022-12-22T03:31:43ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências0001-37651678-26902012-12-018441147115610.1590/S0001-37652012000400029Use of the correlation coefficient in agricultural sciences: problems, pitfalls and how to deal with themMarcin KozakWojtek KrzanowskiMa&amp;#321;gorzata TartanusThis paper discusses a number of aspects concerning the analysis, interpretation and reporting of correlations in agricultural sciences. Various problems that one might encounter with these aspects are identified, and suggestions of how to overcome these problems are proposed. Some of the examples presented show how mistaken and even misleading the interpretation of correlation can be when one ignores simple rules of analysis.<br>Este artigo discute uma série de aspectos relacionados a análise, interpretação e forma de relatar correlações em ciências Agrárias. São identificados vários problemas que podem ser encontrados, bem como feitas sugestões de como superá-los. Alguns dos exemplos apresentados mostram quão erradas e mesmo enganosas podem ser as interpretações de correlação quando regras simples de análise são ignoradas.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000400029design experimentallinearidadeanálise de trilhaparadoxo de Simpsonanálise estatísticaexperimental designlinearitypath analysisSimpson's paradoxstatistical analysis
spellingShingle Marcin Kozak
Wojtek Krzanowski
Ma&amp;#321;gorzata Tartanus
Use of the correlation coefficient in agricultural sciences: problems, pitfalls and how to deal with them
Anais da Academia Brasileira de Ciências
design experimental
linearidade
análise de trilha
paradoxo de Simpson
análise estatística
experimental design
linearity
path analysis
Simpson's paradox
statistical analysis
title Use of the correlation coefficient in agricultural sciences: problems, pitfalls and how to deal with them
title_full Use of the correlation coefficient in agricultural sciences: problems, pitfalls and how to deal with them
title_fullStr Use of the correlation coefficient in agricultural sciences: problems, pitfalls and how to deal with them
title_full_unstemmed Use of the correlation coefficient in agricultural sciences: problems, pitfalls and how to deal with them
title_short Use of the correlation coefficient in agricultural sciences: problems, pitfalls and how to deal with them
title_sort use of the correlation coefficient in agricultural sciences problems pitfalls and how to deal with them
topic design experimental
linearidade
análise de trilha
paradoxo de Simpson
análise estatística
experimental design
linearity
path analysis
Simpson's paradox
statistical analysis
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000400029
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AT maamp321gorzatatartanus useofthecorrelationcoefficientinagriculturalsciencesproblemspitfallsandhowtodealwiththem