{"id":2619,"date":"2023-07-21T11:40:21","date_gmt":"2023-07-21T11:40:21","guid":{"rendered":"https:\/\/statorials.org\/pt\/cohens-kappa-excel\/"},"modified":"2023-07-21T11:40:21","modified_gmt":"2023-07-21T11:40:21","slug":"cohens-kappa-excel","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/cohens-kappa-excel\/","title":{"rendered":"Como calcular o kappa de cohen no excel"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\"><strong>O Kappa de Cohen<\/strong> \u00e9 usado para medir o n\u00edvel de concord\u00e2ncia entre dois avaliadores ou ju\u00edzes que classificam cada item em categorias mutuamente exclusivas.<\/span><\/p>\n<p> <span style=\"color: #000000;\">A f\u00f3rmula kappa de Cohen \u00e9 calculada da seguinte forma:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>k = (p <sub>o<\/sub> \u2013 p <sub>e<\/sub> ) \/ (1 \u2013 p <sub>e<\/sub> )<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Ouro:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>p <sub>o<\/sub> :<\/strong> Concord\u00e2ncia relativa observada entre os avaliadores<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>p <sub>e<\/sub> :<\/strong> Probabilidade hipot\u00e9tica de concord\u00e2ncia casual<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Em vez de simplesmente calcular a percentagem de itens com os quais os avaliadores concordam, o Kappa de Cohen tenta explicar o facto de os avaliadores poderem concordar com alguns itens por mero acaso.<\/span><\/p>\n<p> <span style=\"color: #000000;\">O valor do Kappa de Cohen est\u00e1 sempre entre 0 e 1, sendo 0 indicando nenhuma concord\u00e2ncia entre os dois avaliadores e 1 indicando concord\u00e2ncia perfeita entre os dois avaliadores.<\/span><\/p>\n<p> <span style=\"color: #000000;\">A tabela a seguir resume como interpretar os diferentes valores do Kappa de Cohen:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-14573 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/kappa1.png\" alt=\"Capa de Cohen\" width=\"296\" height=\"226\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">O exemplo a seguir mostra como calcular o Kappa de Cohen no Excel.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo: Calcule o Kappa de Cohen no Excel<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Suponha que dois curadores de um museu de arte sejam solicitados a avaliar 70 pinturas para ver se s\u00e3o boas o suficiente para serem exibidas em uma nova exposi\u00e7\u00e3o.<\/span><\/p>\n<p> <span style=\"color: #000000;\">A tabela 2&#215;2 a seguir mostra os resultados das avalia\u00e7\u00f5es:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-23117 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/cohenexcel1.jpg\" alt=\"\" width=\"507\" height=\"349\" srcset=\"\" sizes=\"auto, \"><\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">A captura de tela a seguir mostra como calcular o Kappa de Cohen para avaliadores, incluindo as f\u00f3rmulas usadas:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-23118\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/cohenexcel2.jpg\" alt=\"Kappa de Cohen no Excel\" width=\"489\" height=\"390\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">O <strong>valor p <sub>0<\/sub><\/strong> representa a concord\u00e2ncia relativa entre os avaliadores. Esta \u00e9 a propor\u00e7\u00e3o das pontua\u00e7\u00f5es totais para as quais ambos os avaliadores responderam \u201cSim\u201d ou \u201cN\u00e3o\u201d.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Isso acaba sendo <strong>0,6429<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">O valor <strong>p <sub>e<\/sub><\/strong> representa a probabilidade de os avaliadores terem conseguido chegar a um acordo por puro acaso.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Isso resulta em <strong>0,5<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">O valor <strong>k<\/strong> representa o Kappa de Cohen, que \u00e9 calculado da seguinte forma:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">k = (p <sub>o<\/sub> \u2013 p <sub>e<\/sub> ) \/ (1 \u2013 p <sub>e<\/sub> )<\/span><\/li>\n<li> <span style=\"color: #000000;\">k = (0,6429 \u2013 0,5) \/ (1 \u2013 0,5)<\/span><\/li>\n<li> <span style=\"color: #000000;\">k = <strong>0,2857<\/strong><\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">O Kappa de Cohen \u00e9 <strong>0,2857<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Com base na tabela anterior, dir\u00edamos que os dois avaliadores tiveram apenas um n\u00edvel de concord\u00e2ncia \u201crazo\u00e1vel\u201d.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Os tutoriais a seguir fornecem recursos adicionais sobre o Kappa de Cohen:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pt\/estatistica-kappa-de-cohen\/\" target=\"_blank\" rel=\"noopener\">Introdu\u00e7\u00e3o ao Kappa de Cohen<\/a><br \/> Calculadora Kappa de Cohen<\/p>\n","protected":false},"excerpt":{"rendered":"<p>O Kappa de Cohen \u00e9 usado para medir o n\u00edvel de concord\u00e2ncia entre dois avaliadores ou ju\u00edzes que classificam cada item em categorias mutuamente exclusivas. A f\u00f3rmula kappa de Cohen \u00e9 calculada da seguinte forma: k = (p o \u2013 p e ) \/ (1 \u2013 p e ) Ouro: p o : Concord\u00e2ncia relativa [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-2619","post","type-post","status-publish","format-standard","hentry","category-guia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Como calcular o Kappa de Cohen no Excel \u2013 Estatologia<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como calcular o Kappa de Cohen no Excel, com um exemplo completo.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/pt\/cohens-kappa-excel\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como calcular o Kappa de Cohen no Excel \u2013 Estatologia\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como calcular o Kappa de Cohen no Excel, com um exemplo completo.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/cohens-kappa-excel\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-21T11:40:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/kappa1.png\" \/>\n<meta name=\"author\" content=\"Dr. benjamim anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dr. benjamim anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pt\/cohens-kappa-excel\/\",\"url\":\"https:\/\/statorials.org\/pt\/cohens-kappa-excel\/\",\"name\":\"Como calcular o Kappa de Cohen no Excel \u2013 Estatologia\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-21T11:40:21+00:00\",\"dateModified\":\"2023-07-21T11:40:21+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como calcular o Kappa de Cohen no Excel, com um exemplo completo.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/cohens-kappa-excel\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/cohens-kappa-excel\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/cohens-kappa-excel\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como calcular o kappa de cohen no excel\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/pt\/#website\",\"url\":\"https:\/\/statorials.org\/pt\/\",\"name\":\"Statorials\",\"description\":\"O seu guia para a literacia estat\u00edstica!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/pt\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pt-PT\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\",\"name\":\"Dr. benjamim anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-PT\",\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/pt\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/pt\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Dr. benjamim anderson\"},\"description\":\"Ol\u00e1, sou Benjamin, um professor aposentado de estat\u00edstica que se tornou professor dedicado na Statorials. 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