{"id":10891,"date":"2025-07-15T13:34:51","date_gmt":"2025-07-15T13:34:51","guid":{"rendered":"https:\/\/functiontranslator.com\/fisher\/"},"modified":"2021-02-25T17:19:22","modified_gmt":"2021-02-25T17:19:22","slug":"fisher","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/pt-pt\/fisher\/","title":{"rendered":"FISHER"},"content":{"rendered":"<p>A fun\u00e7\u00e3o FISHER no Microsoft Excel e Google Sheets \u00e9 utilizada para converter um coeficiente de correla\u00e7\u00e3o em sua equivalente transforma\u00e7\u00e3o z de Fisher. Esta funcionalidade \u00e9 particularmente valiosa para an\u00e1lises estat\u00edsticas, especialmente quando h\u00e1 a necessidade de comparar correla\u00e7\u00f5es entre diferentes conjuntos de dados. A transforma\u00e7\u00e3o pela f\u00f3rmula de Fisher aproxima a distribui\u00e7\u00e3o a uma forma mais normal, facilitando significativamente a realiza\u00e7\u00e3o de an\u00e1lises e testes estat\u00edsticos mais avan\u00e7ados.<\/p>\n<h2>Sintaxe e Exemplos<\/h2>\n<p>A sintaxe da fun\u00e7\u00e3o FISHER \u00e9 simples e direta:<\/p>\n<pre><code>=FISHER(x)<\/code><\/pre>\n<p>Onde <code>x<\/code> representa o coeficiente de correla\u00e7\u00e3o de Pearson, que deve estar no intervalo de -1 a 1 (exclusivo).<\/p>\n<p>Por exemplo, para um coeficiente de correla\u00e7\u00e3o de 0.5, a transforma\u00e7\u00e3o z de Fisher \u00e9 calculada como:<\/p>\n<pre><code>=FISHER(0.5)<\/code><\/pre>\n<p>Este c\u00e1lculo retorna aproximadamente 0.5493.<\/p>\n<h2>Aplica\u00e7\u00f5es Pr\u00e1ticas<\/h2>\n<p>Veja abaixo algumas aplica\u00e7\u00f5es pr\u00e1ticas da fun\u00e7\u00e3o FISHER:<\/p>\n<h2>An\u00e1lise de Consist\u00eancia de Correla\u00e7\u00e3o<\/h2>\n<p>Consideremos o caso de um psic\u00f3logo que deseja comparar a consist\u00eancia das correla\u00e7\u00f5es entre estresse e produtividade em dois grupos distintos de indiv\u00edduos. Os coeficientes de correla\u00e7\u00e3o encontrados foram de 0.45 para o grupo A e -0.40 para o grupo B.<\/p>\n<p>Inicialmente, o psic\u00f3logo pode transformar esses coeficientes utilizando a fun\u00e7\u00e3o FISHER:<\/p>\n<pre><code>=FISHER(0.45) \/\/ Retorna ~0.485 =FISHER(-0.40) \/\/ Retorna ~-0.424<\/code><\/pre>\n<p>Com esses valores transformados, \u00e9 mais confi\u00e1vel realizar testes estat\u00edsticos para comparar as diferen\u00e7as nas correla\u00e7\u00f5es entre os grupos.<\/p>\n<h2>Estudo Longitudinal em Pesquisa Educacional<\/h2>\n<p>Em um estudo longitudinal, um educador pode estar interessado em avaliar como a rela\u00e7\u00e3o entre o envolvimento dos alunos e seus resultados acad\u00eamicos se desenvolve ao longo do tempo. Suponha que ele colete dados em tr\u00eas momentos diferentes e calcule os coeficientes de correla\u00e7\u00e3o como 0.3, 0.5 e 0.6. Para facilitar a compara\u00e7\u00e3o desses coeficientes ao longo do tempo, ele pode aplicar a fun\u00e7\u00e3o FISHER:<\/p>\n<pre><code>=FISHER(0.3) \/\/ Retorna ~0.3095 =FISHER(0.5) \/\/ Retorna ~0.5493 =FISHER(0.6) \/\/ Retorna ~0.6931<\/code><\/pre>\n<p>Os valores obtidos permitir\u00e3o que o educador analise com maior precis\u00e3o se e como a correla\u00e7\u00e3o entre envolvimento dos alunos e desempenho melhorou ao longo do per\u00edodo estudado.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Devolve a transforma\u00e7\u00e3o Fisher<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[442],"tags":[],"class_list":["post-10891","post","type-post","status-publish","format-standard","hentry","category-estatistica"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Fun\u00e7\u00e3o FISHER no Excel \u2013 como funciona, exemplos e sintaxe<\/title>\n<meta name=\"description\" content=\"Breve descri\u00e7\u00e3o da fun\u00e7\u00e3o FISHER do Excel. 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