{"id":5877,"date":"2022-06-20T10:00:00","date_gmt":"2022-06-20T09:00:00","guid":{"rendered":"https:\/\/www.dragnsurvey.com\/blog\/?p=5877"},"modified":"2025-04-02T12:44:57","modified_gmt":"2025-04-02T11:44:57","slug":"les-sondages-sont-ils-fiables","status":"publish","type":"post","link":"https:\/\/www.dragnsurvey.com\/blog\/les-sondages-sont-ils-fiables\/","title":{"rendered":"<div style=\"margin-top:3rem;margin-bottom:1rem;\"><span class=\"firstpart\">De quels \u00e9l\u00e9ments la fiabilit\u00e9<\/span>   des sondages d\u00e9pend-elle ?<\/div>"},"content":{"rendered":"\n<p>Afin de conna\u00eetre les <strong>intentions de vote<\/strong>, le sondage est un outil indispensable lors d'une campagne \u00e9lectorale. Effectivement, les instituts de sondages y ont recours pour collecter des donn\u00e9es utiles pour pr\u00e9dire le gagnant de la prochaine <strong>\u00e9lection pr\u00e9sidentielle en France<\/strong>. <\/p>\n\n\n\n<p>Cependant, des questions se posent concernant la fiabilit\u00e9 des sondages, puisque l'abstention des \u00e9lecteurs le jour de l\u2019\u00e9lection d\u00e9passe r\u00e9guli\u00e8rement les 40 %, ce qui donne une marge d\u2019erreur plus importante.<\/p>\n\n\n\n<p>Pour en savoir plus sur la <strong>fiabilit\u00e9 de ces enqu\u00eates<\/strong>, des informations et des donn\u00e9es qu\u2019elles fournissent, poursuivez la lecture de cet article.<\/p>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><em>>> <strong>Drag'n Survey<\/strong>, le logiciel fran\u00e7ais pour <strong>cr\u00e9er un sondage en ligne<\/strong>, <strong><a href=\"https:\/\/www.dragnsurvey.com\/sondage-en-ligne\/?cd=648752&amp;utm_source=blog&amp;utm_medium=dragnsurvey&amp;utm_campaign=blog_Sondages_Fiables&amp;utm_term=click_here\">cliquez-ici<\/a><\/strong><\/em><\/p>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"395\" src=\"https:\/\/www.dragnsurvey.com\/blog\/wp-content\/uploads\/2022\/12\/fiabilite-sondage-en-ligne.jpg\" alt=\"\" class=\"wp-image-6590\" srcset=\"https:\/\/www.dragnsurvey.com\/blog\/wp-content\/uploads\/2022\/12\/fiabilite-sondage-en-ligne.jpg 640w, https:\/\/www.dragnsurvey.com\/blog\/wp-content\/uploads\/2022\/12\/fiabilite-sondage-en-ligne-300x185.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure><\/div>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">La fiabilit\u00e9 du sondage et les r\u00e8gles probabilistes<\/h2>\n\n\n\n<p>Pour augmenter la fiabilit\u00e9 des sondages, il est important de r\u00e9duire la <a href=\"https:\/\/www.dragnsurvey.com\/blog\/marge-erreur-sondage\/\">marge d\u2019erreur<\/a>. Pour cela,<strong> la taille de la population<\/strong> \u00e0 interroger doit respecter un certain volume. <\/p>\n\n\n\n<p>Un institut de sondage doit aussi respecter la loi du 25 avril 2016 stipulant qu\u2019un sondage est <strong>une enqu\u00eate statistique<\/strong> qui vise \u00e0 collecter des donn\u00e9es et des informations sur une population en interrogeant un \u00e9chantillon. Ainsi, un sondage doit \u00eatre mis en ligne accompagn\u00e9 des informations suivantes : <\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><p>Le nom de l\u2019institut de sondage ;<\/p><\/li><li><p>L\u2019identit\u00e9 du client ;<\/p><\/li><li><p>La taille de l\u2019\u00e9chantillon ;<\/p><\/li><li><p>La date du questionnaire ;<\/p><\/li><li>L\u2019existence ou non d\u2019une marge d\u2019erreur et sa valeur.  <\/li><\/ul>\n\n\n\n<p>De plus, les instituts de sondages ob\u00e9issent aux r\u00e8gles de d\u00e9claration impos\u00e9es par<strong> <\/strong>la <a rel=\"noreferrer noopener\" href=\"https:\/\/www.commission-des-sondages.fr\/\" target=\"_blank\">commission des sondages<\/a>. Cette derni\u00e8re contr\u00f4le la m\u00e9thode adopt\u00e9e pour effectuer une enqu\u00eate d\u2019opinion. De plus, les r\u00e9sultats d'un questionnaire sur l\u2019\u00e9lection pr\u00e9sidentielle (relative \u00e0 la campagne ou aux intentions de vote) ne doivent pas \u00eatre mis en ligne ou comment\u00e9s le jour du premier ou du second tour de l\u2019\u00e9lection, par mesure de s\u00e9curit\u00e9.<\/p>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/app.dragnsurvey.com\/fr\/inscription\/?cd=648752&amp;utm_source=blog&amp;utm_medium=dragnsurvey&amp;utm_campaign=blog_Sondages_Fiables&amp;utm_term=Inscription_form\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"200\" src=\"https:\/\/www.dragnsurvey.com\/blog\/wp-content\/uploads\/2021\/06\/creer-questionnaire-en-ligne-sondage-quiz.png\" alt=\"\" class=\"wp-image-4559\" srcset=\"https:\/\/www.dragnsurvey.com\/blog\/wp-content\/uploads\/2021\/06\/creer-questionnaire-en-ligne-sondage-quiz.png 500w, https:\/\/www.dragnsurvey.com\/blog\/wp-content\/uploads\/2021\/06\/creer-questionnaire-en-ligne-sondage-quiz-300x120.png 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure><\/div>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Les sondages font partie de l\u2019actualit\u00e9 politique, mais qu\u2019en est-il de leur fiabilit\u00e9 ?<\/h2>\n\n\n\n<p>Ces derni\u00e8res ann\u00e9es, <strong>les enqu\u00eates d\u2019opinion<\/strong> sont devenues incontournables en politique en France, notamment lors des \u00e9lections pr\u00e9sidentielles. Cependant, les r\u00e9sultats ne sont pas toujours fiables. <\/p>\n\n\n\n<p>En effet, lors des \u00e9lections l\u00e9gislatives de 2017, les instituts de sondage avaient enregistr\u00e9 un taux de participation de 60 % alors que ce dernier \u00e9tait en r\u00e9alit\u00e9 de 49 %, soit 11 % d\u2019intervalle.<\/p>\n\n\n\n<p>Ces donn\u00e9es donnent <strong>une fausse information<\/strong> \u00e0 la population, \u00e0 cause de nombreux probl\u00e8mes dans la r\u00e9alisation des \u00e9tudes qui remettent leur qualit\u00e9 en question.<\/p>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">La repr\u00e9sentativit\u00e9 de l\u2019\u00e9chantillon de la population<\/h3>\n\n\n\n<p>Si l\u2019\u00e9chantillon de population n\u2019est pas repr\u00e9sentatif, un <strong>coefficient de redressement<\/strong> est appliqu\u00e9. C\u2019est-\u00e0-dire qu\u2019on accorde plus d\u2019importance aux r\u00e9ponses des participants moins repr\u00e9sent\u00e9s pour se rapprocher de la r\u00e9alit\u00e9. <\/p>\n\n\n\n<p>De plus, l\u2019abstention des \u00e9lecteurs \u00e0 d\u00e9clarer leur candidat avant le jour du scrutin, surtout s\u2019ils ne font pas confiance au sondage, r\u00e9duit la fiabilit\u00e9 de ce dernier. Il s\u2019agit du <strong>biais de la d\u00e9sirabilit\u00e9 sociale<\/strong>. Par exemple, lors du scrutin de 2002 en France, Jean-Marie Le Pen a pu passer le premier tour avec 16,86 % des votes, tandis que les donn\u00e9es pr\u00e9disaient un second tour opposant Chirac et Jospin.<\/p>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.dragnsurvey.com\/download\/telecharger_guide\/?cd=648752&amp;utm_source=blog&amp;utm_medium=dragnsurvey&amp;utm_campaign=blog_Sondages_Fiables&amp;utm_term=Guide\"><img loading=\"lazy\" decoding=\"async\" width=\"509\" height=\"211\" src=\"https:\/\/www.dragnsurvey.com\/blog\/wp-content\/uploads\/2015\/10\/image-twitter.jpg\" alt=\"\" class=\"wp-image-464\" srcset=\"https:\/\/www.dragnsurvey.com\/blog\/wp-content\/uploads\/2015\/10\/image-twitter.jpg 509w, https:\/\/www.dragnsurvey.com\/blog\/wp-content\/uploads\/2015\/10\/image-twitter-300x124.jpg 300w\" sizes=\"auto, (max-width: 509px) 100vw, 509px\" \/><\/a><\/figure><\/div>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">L\u2019expression de l\u2019intention et la taille de l\u2019\u00e9chantillon<\/h3>\n\n\n\n<p>D\u2019un point de vue statistique, sur un \u00e9chantillon de 1000 participants, si 50 % souhaitent participer au vote, on ne retient que 50 % des r\u00e9ponses par mesure de s\u00e9curit\u00e9 et pour <strong>optimiser la cr\u00e9dibilit\u00e9 de l\u2019enqu\u00eate<\/strong>. Concernant la taille de l\u2019\u00e9chantillon, plus ce dernier est important, plus la marge d\u2019erreur diminue. <\/p>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Faut-il faire confiance aux sondages ?<\/h2>\n\n\n\n<p>Puisque <strong>la cr\u00e9dibilit\u00e9 de leurs r\u00e9sultats<\/strong> et de l'information v\u00e9hicul\u00e9e est parfois remise en question, il est recommand\u00e9 de suivre les d\u00e9bats politiques opposant les candidats. <\/p>\n\n\n\n<p>L\u2019analyse des programmes des candidats au cours de leur campagne est \u00e9galement plus int\u00e9ressant que l\u2019analyse des r\u00e9sultats d\u2019un sondage. En effet, les chiffres peuvent parfois \u00eatre interpr\u00e9t\u00e9s de diff\u00e9rentes mani\u00e8res. <\/p>\n\n\n\n<p>Ces derni\u00e8res ann\u00e9es, les citoyens fran\u00e7ais ont de plus en plus de mal \u00e0 <strong>faire confiance aux sondages<\/strong>. En effet, leur utilisation pour influencer l\u2019\u00e9lecteur fran\u00e7ais et l\u2019abstention de ce dernier \u00e0 r\u00e9v\u00e9ler son candidat avant de voter a fait baisser leur fiabilit\u00e9. Cependant, <strong>le sondage reste un outil indispensable pour mesurer des opinions<\/strong> aupr\u00e8s d'une population cible. <\/p>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/www.dragnsurvey.com\/request\/demo\/?cd=648752&amp;utm_source=blog&amp;utm_medium=dragnsurvey&amp;utm_campaign=blog_Sondages_Fiables&amp;utm_term=Demo\"><img decoding=\"async\" src=\"https:\/\/www.dragnsurvey.com\/blog\/wp-content\/uploads\/2021\/08\/demander-une-demo-long.png\" alt=\"\" class=\"wp-image-5399\" width=\"600\" srcset=\"https:\/\/www.dragnsurvey.com\/blog\/wp-content\/uploads\/2021\/08\/demander-une-demo-long.png 902w, https:\/\/www.dragnsurvey.com\/blog\/wp-content\/uploads\/2021\/08\/demander-une-demo-long-300x123.png 300w, https:\/\/www.dragnsurvey.com\/blog\/wp-content\/uploads\/2021\/08\/demander-une-demo-long-768x315.png 768w\" sizes=\"(max-width: 902px) 100vw, 902px\" \/><\/a><\/figure><\/div>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>Articles compl\u00e9mentaires :<\/strong><br>- R\u00e9aliser simplement un questionnaire de satisfaction, <a href=\"https:\/\/www.dragnsurvey.com\/blog\/14-exemples-de-questions-questionnaire-de-satisfaction-client\/\">cliquez-ici<\/a><br>- Trouver une solution alternative au logiciel Google Forms, <a href=\"https:\/\/www.dragnsurvey.com\/blog\/5-meilleures-alternatives-google-forms\/\">cliquez-ici<\/a><br>- R\u00e9ussir \u00e0 optimiser l'exp\u00e9rience client dans une entreprise, <a href=\"https:\/\/www.dragnsurvey.com\/blog\/experience-client-essentiel-a-savoir\/\">cliquez-ici<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Afin de conna\u00eetre les intentions de vote, le sondage est un outil indispensable lors d&rsquo;une campagne \u00e9lectorale. Effectivement, les instituts de sondages y ont recours pour collecter des donn\u00e9es utiles pour pr\u00e9dire le gagnant de la prochaine \u00e9lection pr\u00e9sidentielle en France. Cependant, des questions se posent concernant la fiabilit\u00e9 des sondages, puisque l&rsquo;abstention des \u00e9lecteurs&hellip;&nbsp;<a href=\"https:\/\/www.dragnsurvey.com\/blog\/les-sondages-sont-ils-fiables\/\" rel=\"bookmark\">Lire la suite &raquo;<span class=\"screen-reader-text\"><\/p>\n<div style=\"margin-top:3rem;margin-bottom:1rem;\"><span class=\"firstpart\">De quels \u00e9l\u00e9ments la fiabilit\u00e9<\/span>   des sondages d\u00e9pend-elle ?<\/div>\n<p><\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[45],"tags":[],"class_list":["post-5877","post","type-post","status-publish","format-standard","hentry","category-autres"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Les sondages sont-ils fiables : un sujet de controverse<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.dragnsurvey.com\/blog\/les-sondages-sont-ils-fiables\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"De quels \u00e9l\u00e9ments la fiabilit\u00e9 des sondages d\u00e9pend-elle ?\" \/>\n<meta property=\"og:description\" content=\"Afin de conna\u00eetre les intentions de vote, le sondage est un outil indispensable lors d&#039;une campagne \u00e9lectorale. Effectivement, les instituts de sondages y ont recours pour collecter des donn\u00e9es utiles pour pr\u00e9dire le gagnant de la prochaine \u00e9lection pr\u00e9sidentielle en France. Cependant, des questions se posent concernant la fiabilit\u00e9 des sondages, puisque l&#039;abstention des \u00e9lecteurs&hellip;&nbsp;Lire la suite &raquo;De quels \u00e9l\u00e9ments la fiabilit\u00e9  des sondages d\u00e9pend-elle ?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.dragnsurvey.com\/blog\/les-sondages-sont-ils-fiables\/\" \/>\n<meta property=\"og:site_name\" content=\"Drag&#039;n Survey\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/DragnSurvey\/\" \/>\n<meta property=\"article:published_time\" content=\"2022-06-20T09:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-04-02T11:44:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.dragnsurvey.com\/blog\/wp-content\/uploads\/2022\/12\/fiabilite-sondage-en-ligne.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"640\" \/>\n\t<meta property=\"og:image:height\" content=\"395\" \/>\n\t<meta property=\"og:image:type\" 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