{"id":4086,"date":"2026-10-15T07:39:05","date_gmt":"2026-10-15T06:39:05","guid":{"rendered":"https:\/\/wpcalc.com\/tr\/istatistik\/cronbach-alfa-hesaplayici\/"},"modified":"2026-10-15T07:39:05","modified_gmt":"2026-10-15T06:39:05","slug":"cronbach-alfa-hesaplayici","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/tr\/istatistik\/cronbach-alfa-hesaplayici\/","title":{"rendered":"Cronbach alfa hesaplay\u0131c\u0131"},"content":{"rendered":"<section class=\"not-prose calculator-box\" aria-labelledby=\"calculator-title\"><div class=\"flex items-baseline sm:items-center justify-between gap-2 sm:gap-3\"><div class=\"flex flex-col sm:flex-row sm:items-center gap-2\"><span class=\"icon icon-calculator text-primary-700! text-base! dark:text-primary-300!\" aria-hidden=\"true\"><\/span><h2 id=\"calculator-title\" class=\"text-lg font-display font-bold\">\u00d6l\u00e7e\u011fin i\u00e7 tutarl\u0131l\u0131\u011f\u0131n\u0131 de\u011ferlendirin<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"4086\" data-favorite-title=\"Cronbach alfa\" data-favorite-url=\"https:\/\/wpcalc.com\/tr\/istatistik\/cronbach-alfa-hesaplayici\/\" data-favorite-excerpt=\"En fazla alt\u0131 \u00f6l\u00e7ek maddesinin puanlar\u0131n\u0131, her kutuya bir madde gelecek \u015fekilde girin. Cronbach alfa katsay\u0131s\u0131n\u0131, standartla\u015ft\u0131r\u0131lm\u0131\u015f alfay\u0131, madde istatistiklerini ve her bir madde \u00e7\u0131kar\u0131ld\u0131\u011f\u0131nda elde edilecek alfa de\u011ferini g\u00f6r\u00fcn.\" aria-label=\"Favorilere ekle\" data-favorite-icon=\"icon icon-wpcalc-bell-curve\">\n    <span class=\"icon icon-shape-star-empty\" aria-hidden=\"true\"><\/span>\n  <\/button>\n  <div class=\"calcdash-favorite__tip\" aria-hidden=\"true\">\n   <span class=\"favorite-tooltip\" id=\"favorite-tooltip\"><\/span>\n  <\/div>\n  <span class=\"sr-only\" role=\"status\" id=\"favorite-status\"><\/span>\n<\/div><\/div><form action=\"https:\/\/wpcalc.com\/tr\/istatistik\/cronbach-alfa-hesaplayici\/\" method=\"POST\" class=\"calculator\" id=\"calculator-4086\" data-post=\"4086\"><fieldset class=\"fieldset-input is-1\"><legend class=\"sr-only\">Giri\u015f alanlar\u0131<\/legend><div class=\"is-single field\" id=\"input-1\"><span class=\"font-semibold\">Madde puanlar\u0131 \u2014 her alana bir maddenin t\u00fcm kat\u0131l\u0131mc\u0131lara ait puanlar\u0131n\u0131 girin<\/span><\/div><div class=\"field\" id=\"input-2\"><label for=\"field-2\">1. madde puanlar\u0131<\/label><textarea id=\"field-2\" name=\"1_madde_puanlar\">4; 3; 5; 2; 4<\/textarea><\/div><div class=\"field\" id=\"input-3\"><label for=\"field-3\">2. madde puanlar\u0131<\/label><textarea id=\"field-3\" name=\"2_madde_puanlar\">5; 3; 4; 2; 5<\/textarea><\/div><div class=\"field\" id=\"input-4\"><label for=\"field-4\">3. madde puanlar\u0131<\/label><textarea id=\"field-4\" name=\"3_madde_puanlar\">4; 4; 5; 3; 4<\/textarea><\/div><div class=\"field\" id=\"input-5\"><label for=\"field-5\">4. madde puanlar\u0131<\/label><textarea id=\"field-5\" name=\"4_madde_puanlar\">3; 3; 4; 2; 4<\/textarea><\/div><div class=\"field\" id=\"input-6\"><label for=\"field-6\">5. madde puanlar\u0131 (iste\u011fe ba\u011fl\u0131)<\/label><textarea id=\"field-6\" name=\"5_madde_puanlar_istee_bal\"><\/textarea><\/div><div class=\"field\" id=\"input-7\"><label for=\"field-7\">6. madde puanlar\u0131 (iste\u011fe ba\u011fl\u0131)<\/label><textarea id=\"field-7\" name=\"6_madde_puanlar_istee_bal\"><\/textarea><\/div><\/fieldset><div class=\"buttons\"><button type=\"submit\" data-text=\"Yeniden hesapla\" id=\"calculate-button\" data-post=\"4086\">Hesapla<\/button><button type=\"reset\">S\u0131f\u0131rla<\/button><\/div><div class=\"field is-checkbox hidden!\" id=\"field-auto-calc\"><input type=\"checkbox\" id=\"auto-calc\"><label for=\"auto-calc\">Otomatik hesapla<\/label><small>Etkinle\u015ftirilirse, herhangi bir de\u011feri de\u011fi\u015ftirdi\u011finizde sonu\u00e7 otomatik olarak g\u00fcncellenir.<\/small><\/div><div class=\"fieldset-result is-hidden\" aria-labelledby=\"result-title\" aria-live=\"polite\" role=\"region\"> <h3 class=\"result-title bg-gradient-to-r from-primary-50 to-gray-50 dark:from-primary-900 dark:to-gray-800\" id=\"result-title\"><span class=\"icon icon-s-pulse\" aria-hidden=\"true\"><\/span> \u0130\u00e7 tutarl\u0131l\u0131k sonu\u00e7lar\u0131<\/h3><div class=\"result-box\"><div class=\"field-result\" id=\"output-1\"><span class=\"field-title\"><span>Cronbach alfa<\/span><span class=\"result-term\">\u03b1<\/span><\/span><span class=\"field-value\" id=\"result-1\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Sonucu kopyala\" aria-label=\"Sonucu kopyala\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-2\"><span class=\"field-title\"><span>Standartla\u015ft\u0131r\u0131lm\u0131\u015f alfa (maddeler aras\u0131 ortalama korelasyondan)<\/span><span class=\"result-term\">\u03b1\u2032<\/span><\/span><span class=\"field-value\" id=\"result-2\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Sonucu kopyala\" aria-label=\"Sonucu kopyala\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-3\"><span class=\"field-title\"><span>Madde say\u0131s\u0131<\/span><span class=\"result-term\">k<\/span><\/span><span class=\"field-value\" id=\"result-3\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Sonucu kopyala\" aria-label=\"Sonucu kopyala\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-4\"><span class=\"field-title\"><span>Kat\u0131l\u0131mc\u0131lar<\/span><span class=\"result-term\">n<\/span><\/span><span class=\"field-value\" id=\"result-4\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Sonucu kopyala\" aria-label=\"Sonucu kopyala\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-5\"><span class=\"field-title\"><span>Madde varyanslar\u0131n\u0131n toplam\u0131<\/span><span class=\"result-term\">\u03a3s\u00b2\u1d62<\/span><\/span><span class=\"field-value\" id=\"result-5\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Sonucu kopyala\" aria-label=\"Sonucu kopyala\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-6\"><span class=\"field-title\"><span>Toplam puan varyans\u0131<\/span><span class=\"result-term\">s\u00b2\u209c<\/span><\/span><span class=\"field-value\" id=\"result-6\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Sonucu kopyala\" aria-label=\"Sonucu kopyala\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result is-column\" id=\"output-7\"><span class=\"field-title\"><span>Madde istatistikleri<\/span><\/span><span class=\"field-value\" id=\"result-7\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Sonucu kopyala\" aria-label=\"Sonucu kopyala\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result is-column\" id=\"output-8\"><span class=\"field-title\"><span>Alfa nas\u0131l hesaplan\u0131r ve yorumlan\u0131r?<\/span><\/span><span class=\"field-value\" id=\"result-8\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Sonucu kopyala\" aria-label=\"Sonucu kopyala\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><\/div><div class=\"result-actions\"><button type=\"button\" class=\"copy-link\"><svg viewBox=\"0 0 20 20\" fill=\"currentColor\" aria-hidden=\"true\"><path d=\"M12.232 4.232a2.5 2.5 0 0 1 3.536 3.536l-1.225 1.224a.75.75 0 0 0 1.061 1.06l1.224-1.224a4 4 0 0 0-5.656-5.656l-3 3a4 4 0 0 0 .225 5.865.75.75 0 0 0 .977-1.138 2.5 2.5 0 0 1-.142-3.667l3-3Z\"\/><path d=\"M11.603 7.963a.75.75 0 0 0-.977 1.138 2.5 2.5 0 0 1 .142 3.667l-3 3a2.5 2.5 0 0 1-3.536-3.536l1.225-1.224a.75.75 0 0 0-1.061-1.06l-1.224 1.224a4 4 0 1 0 5.656 5.656l3-3a4 4 0 0 0-.225-5.865Z\"\/><\/svg><span class=\"copy-link__text\">Bu hesaplaman\u0131n ba\u011flant\u0131s\u0131n\u0131 kopyala<\/span><\/button><span class=\"sr-only\" role=\"status\" id=\"copy-link-status\"><\/span><\/div><\/div><a href=\"#respond\" class=\"hidden transition-opacity duration-300 opacity-0 w-50 text-sm justify-center items-center gap-2 px-4 py-2 rounded bg-gray-200 text-gray-700 hover:bg-gray-300\" id=\"leave-comment\"><span class=\"icon icon-comments\" aria-hidden=\"true\"><\/span>Yorum b\u0131rak<\/a><\/form><\/section><section id=\"calc-reactions\" class=\"not-prose hidden my-12 bg-gradient-to-r from-primary-50 to-gray-50 border border-indigo-100 rounded-xl px-6 py-4 shadow-sm\" data-post=\"4086\" aria-live=\"polite\" aria-labelledby=\"calc-reactions-title\"><p id=\"calc-reactions-title\" class=\"text-sm text-gray-500 text-center mb-2\">Bu sonu\u00e7 hakk\u0131nda ne d\u00fc\u015f\u00fcn\u00fcyorsunuz?<\/p><div role=\"group\" aria-labelledby=\"calc-reactions-title\" class=\"grid grid-cols-3 sm:flex sm:flex-row sm:justify-around gap-4 sm:items-center sm:flex-wrap\"><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"like\"><span class=\"reaction-count\" data-reaction-count=\"like\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude00 <\/span><span class=\"reaction-description font-medium\">Be\u011fendim <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"helpful\"><span class=\"reaction-count\" data-reaction-count=\"helpful\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\udca1 <\/span><span class=\"reaction-description font-medium\">Faydal\u0131 <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"confused\"><span class=\"reaction-count\" data-reaction-count=\"confused\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude15 <\/span><span class=\"reaction-description font-medium\">Kafam kar\u0131\u015ft\u0131 <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"disappointed\"><span class=\"reaction-count\" data-reaction-count=\"disappointed\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude1e <\/span><span class=\"reaction-description font-medium\">Hayal k\u0131r\u0131kl\u0131\u011f\u0131 <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"inaccurate\"><span class=\"reaction-count\" data-reaction-count=\"inaccurate\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\u274c <\/span><span class=\"reaction-description font-medium\">Hatal\u0131 <\/span><\/button><\/div><div id=\"reaction-message\" class=\"hidden mt-8 rounded-md border border-primary-100 bg-white\/50 backdrop-blur-sm px-4 py-2 text-sm text-center shadow-sm\"><\/div><\/section><div class=\"calcdash-ad not-prose calcdash-ad--calc_result calcdash-ad--in-article\"><ins class=\"adsbygoogle\" style=\"display:block\" data-ad-client=\"ca-pub-1721569815777345\" data-ad-slot=\"6317458308\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\"><\/ins><script>(adsbygoogle = window.adsbygoogle || []).push({});<\/script><\/div>\n<style id=\"wpcoderpro-inline-1\">.formula-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section class=\"formula-box\" aria-labelledby=\"formula-title\">\r\n\t<div id=\"formula-title\" class=\"not-prose font-display mb-4\"><span class=\"icon icon-formula\" aria-hidden=\"true\"><\/span><h2>Cronbach alfa form\u00fcl\u00fc<\/h2><\/div>\r\n\t<figure class=\"not-prose formula\">\r\n\t\t<figcaption class=\"formula-title\">Form\u00fcl<\/figcaption>\r\n\t\t<div class=\"text-base text-gray-800\" id=\"formula\">\n\\[ \\alpha = \\frac{k}{k-1}\\left(1 - \\frac{\\sum_{i=1}^{k} s_i^2}{s_t^2}\\right) \\]\n<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Burada:<\/strong><\/p>\n<ul>\n<li>\\(k\\) \u2014 \u00f6l\u00e7ekteki madde say\u0131s\u0131<\/li>\n<li>\\(s_i^2\\) \u2014 \\(i\\) maddesinin kat\u0131l\u0131mc\u0131lar aras\u0131ndaki varyans\u0131<\/li>\n<li>\\(s_t^2\\) \u2014 toplam puanlar\u0131n varyans\u0131 (her kat\u0131l\u0131mc\u0131n\u0131n t\u00fcm maddelerden ald\u0131\u011f\u0131 puanlar\u0131n toplam\u0131)<\/li>\n<\/ul>\n<p>Form\u00fcl, maddelerin tek tek varyanslar\u0131n\u0131 puanlar\u0131 topland\u0131\u011f\u0131nda ortaya \u00e7\u0131kan varyansla kar\u015f\u0131la\u015ft\u0131r\u0131r. Maddeler ayn\u0131 temel \u00f6zelli\u011fi \u00f6l\u00e7\u00fcyorsa ortak varyanslar\u0131, toplam puan\u0131n tek tek maddelerden daha fazla de\u011fi\u015fkenlik g\u00f6stermesini sa\u011flar ve alfa 1'e yakla\u015f\u0131r. \u0130lgili bir \u00f6l\u00e7\u00fc olan standartla\u015ft\u0131r\u0131lm\u0131\u015f alfa, maddeler aras\u0131 ortalama korelasyonu \\(\\bar{r}\\) kullan\u0131r:<\/p>\n<p>\\[ \\alpha' = \\frac{k\\bar{r}}{1 + (k-1)\\bar{r}} \\]<\/p>\n<p>T\u00fcm varyanslar, paydas\u0131 \\(n-1\\) olan \u00f6rneklem varyanslar\u0131d\u0131r.<\/p>\n<p>\r\n<\/section>\n<style id=\"wpcoderpro-inline-2\">.calculation-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section id=\"calculation\" class=\"calculation-box\" aria-labelledby=\"calculation-title\">\r\n\t<div id=\"calculation-title\" class=\"not-prose font-display\"><span class=\"icon icon-unordered-list\" aria-hidden=\"true\"><\/span><h2>Cronbach alfa hesaplama \u00f6rne\u011fi<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>\u00d6rnek:<\/strong> 4 maddelik bir anketi 5 kat\u0131l\u0131mc\u0131 yan\u0131tlad\u0131. Varsay\u0131lan puanlar \u015f\u00f6yle: 1. madde \u2014 4, 3, 5, 2, 4; 2. madde \u2014 5, 3, 4, 2, 5; 3. madde \u2014 4, 4, 5, 3, 4; 4. madde \u2014 3, 3, 4, 2, 4.<\/p>\n<p>\\[ s_1^2 = 1.3,\\quad s_2^2 = 1.7,\\quad s_3^2 = 0.5,\\quad s_4^2 = 0.7 \\quad\\Rightarrow\\quad \\textstyle\\sum s_i^2 = 4.2 \\]<\/p>\n<p>\\[ t = 16,\\ 13,\\ 18,\\ 9,\\ 17 \\quad\\Rightarrow\\quad s_t^2 = 13.3 \\]<\/p>\n<p>\\[ \\alpha = \\frac{4}{3}\\left(1 - \\frac{4.2}{13.3}\\right) = 0.9123 \\]<\/p>\n<p>Maddeler aras\u0131 ortalama korelasyon \\(\\bar{r} = 0.786\\) oldu\u011fundan standartla\u015ft\u0131r\u0131lm\u0131\u015f alfa \u015f\u00f6yledir:<\/p>\n<p>\\[ \\alpha' = \\frac{4 \\times 0.786}{1 + 3 \\times 0.786} = 0.9362 \\]<\/p>\n<p><strong>Sonu\u00e7:<\/strong> \\(\\alpha = 0.9123\\) ve \\(\\alpha' = 0.9362\\). Bu de\u011ferler, 4 madde ve 5 kat\u0131l\u0131mc\u0131dan olu\u015fan k\u00fc\u00e7\u00fck \u00f6rnek veri setinde i\u00e7 tutarl\u0131l\u0131\u011f\u0131n m\u00fckemmel oldu\u011funu g\u00f6sterir.<\/p>\n<p>\n\r\n<\/section>\n<h2>Hesaplay\u0131c\u0131 nas\u0131l kullan\u0131l\u0131r?<\/h2>\n<ol>\n<li>\u0130lk metin kutusuna <strong>1. maddenin<\/strong> puanlar\u0131n\u0131 girin. Her kat\u0131l\u0131mc\u0131 i\u00e7in bir puan yaz\u0131n; puanlar\u0131 bo\u015fluk, yeni sat\u0131r veya noktal\u0131 virg\u00fclle ay\u0131r\u0131n. Ondal\u0131k virg\u00fcl (\u00f6rne\u011fin 3,5) kullanabilirsiniz.<\/li>\n<li><strong>2. maddeden<\/strong> <strong>4. maddeye<\/strong> kadar ayn\u0131 \u015fekilde doldurun. Kat\u0131l\u0131mc\u0131 s\u0131ras\u0131n\u0131 de\u011fi\u015ftirmeyin ve her madde i\u00e7in her kat\u0131l\u0131mc\u0131n\u0131n puan\u0131n\u0131 girin.<\/li>\n<li>\u00d6l\u00e7e\u011finiz d\u00f6rtten fazla madde i\u00e7eriyorsa <strong>5. maddeyi<\/strong> ve <strong>6. maddeyi<\/strong> ekleyin; aksi h\u00e2lde bu alanlar\u0131 bo\u015f b\u0131rak\u0131n.<\/li>\n<li>\u00d6ne \u00e7\u0131kan sonu\u00e7lara bak\u0131n: <strong>Cronbach alfa<\/strong>, <strong>standartla\u015ft\u0131r\u0131lm\u0131\u015f alfa<\/strong>, madde ve kat\u0131l\u0131mc\u0131 say\u0131lar\u0131 ile form\u00fclde kullan\u0131lan iki varyans.<\/li>\n<li>Her maddenin ortalamas\u0131n\u0131, standart sapmas\u0131n\u0131, d\u00fczeltilmi\u015f madde-toplam korelasyonunu ve madde \u00e7\u0131kar\u0131ld\u0131\u011f\u0131nda elde edilecek alfa de\u011ferini <strong>madde istatistikleri tablosundan<\/strong> inceleyin. Sonucun yayg\u0131n \u00f6l\u00e7\u00fctlere g\u00f6re nas\u0131l de\u011ferlendirildi\u011fini a\u00e7\u0131klama metninden okuyun.<\/li>\n<\/ol>\n<h2>Cronbach alfa neyi \u00f6l\u00e7er?<\/h2>\n<p>Cronbach alfa, maddeleri toplanarak tek bir puan elde edilen anket, test veya \u00f6l\u00e7eklerin <em>i\u00e7 tutarl\u0131l\u0131\u011f\u0131n\u0131<\/em> \u00f6l\u00e7mek i\u00e7in en yayg\u0131n kullan\u0131lan katsay\u0131d\u0131r. Maddeler birbiriyle uyumlu bi\u00e7imde ayn\u0131 temel \u00f6zelli\u011fi mi \u00f6l\u00e7\u00fcyor, yoksa farkl\u0131 y\u00f6nlere mi i\u015faret ediyor? Alfa bu soruya yan\u0131t verir. Kavramsal olarak, toplam puan varyans\u0131n\u0131n rastlant\u0131sal \u00f6l\u00e7\u00fcm hatas\u0131 yerine maddelerin ortak y\u00f6nlerinden kaynaklanan pay\u0131n\u0131 tahmin eder.<\/p>\n<p>Alfa iki \u015feye ba\u011fl\u0131d\u0131r: maddelerin birbiriyle ne kadar g\u00fc\u00e7l\u00fc ili\u015fkili oldu\u011funa ve madde say\u0131s\u0131na. Birbiriyle g\u00fc\u00e7l\u00fc ili\u015fkili maddelerden olu\u015fan daha uzun bir \u00f6l\u00e7e\u011fin alfas\u0131 daha y\u00fcksek olur. Bu nedenle, maddeleri iyi olsa bile 3 maddelik k\u0131sa bir \u00f6l\u00e7e\u011fin 0,7'ye ula\u015fmas\u0131 zor olabilir. Standartla\u015ft\u0131r\u0131lm\u0131\u015f alfa \\(\\alpha'\\), maddeler aras\u0131 ortalama korelasyondan hesapland\u0131\u011f\u0131 i\u00e7in madde varyanslar\u0131 aras\u0131ndaki farklar\u0131n etkisini ortadan kald\u0131r\u0131r; t\u00fcm maddeler \u00f6nce z puan\u0131na d\u00f6n\u00fc\u015ft\u00fcr\u00fclseydi elde edilecek de\u011ferdir.<\/p>\n<p>George ve Mallery'nin yayg\u0131nla\u015ft\u0131rd\u0131\u011f\u0131 geleneksel de\u011ferlendirme \u00f6l\u00e7\u00fctleri \u015f\u00f6yledir: \\(\\alpha \\ge 0.9\\) m\u00fckemmel, \\(\\ge 0.8\\) iyi, \\(\\ge 0.7\\) kabul edilebilir, \\(\\ge 0.6\\) sorgulanabilir, \\(\\ge 0.5\\) zay\u0131f, 0,5'in alt\u0131 kabul edilemez. Ara\u015ft\u0131rma \u00f6l\u00e7eklerinde genellikle 0,8 civar\u0131 hedeflenir; k\u0131sa \u00f6l\u00e7eklerde veya ke\u015fif ama\u00e7l\u0131 \u00e7al\u0131\u015fmalarda 0,7 \u00e7o\u011fu zaman yeterli kabul edilir. 0,95'in \u00fczerindeki de\u011ferler mutlaka daha iyi de\u011fildir; neredeyse ayn\u0131 soruyu iki kez soran, birbirini tekrar eden maddelere i\u015faret edebilir.<\/p>\n<p>Y\u00fcksek alfa, \u00f6l\u00e7e\u011fin tutarl\u0131 oldu\u011funu g\u00f6sterir; ge\u00e7erli oldu\u011funu de\u011fil. Bir \u00f6l\u00e7ek, yanl\u0131\u015f \u00f6zelli\u011fi \u00f6l\u00e7mesine ra\u011fmen kendi i\u00e7inde kusursuz bir tutarl\u0131l\u0131k g\u00f6sterebilir. Toplam puan\u0131n\u0131z\u0131n ba\u015fka \u00f6l\u00e7\u00fcmlerle ili\u015fkisini incelemek i\u00e7in <a href=\"https:\/\/wpcalc.com\/tr\/istatistik\/spearman-sira-korelasyon-hesaplama\/\">Spearman s\u0131ra korelasyonu hesaplay\u0131c\u0131s\u0131n\u0131<\/a> kullanabilirsiniz. Maddeleri toplamadan \u00f6nce her birinin da\u011f\u0131l\u0131m\u0131n\u0131 kar\u015f\u0131la\u015ft\u0131rmak i\u00e7in de <a href=\"https:\/\/wpcalc.com\/tr\/istatistik\/carpiklik-ve-basiklik-hesaplama\/\">\u00e7arp\u0131kl\u0131k ve bas\u0131kl\u0131k hesaplay\u0131c\u0131s\u0131ndan<\/a> yararlanabilirsiniz.<\/p>\n<h2>Varsay\u0131mlar, s\u0131n\u0131rlamalar ve pratik ipu\u00e7lar\u0131<\/h2>\n<ul>\n<li><strong>Ters puanlanan maddeleri \u00f6nce yeniden kodlay\u0131n.<\/strong> Baz\u0131 maddeler di\u011ferlerinin tersi y\u00f6nde ifade edilmi\u015fse puanlar\u0131n\u0131 girmeden \u00f6nce tersine \u00e7evirmeniz gerekir (\u00f6rne\u011fin 1\u20135 \u00f6l\u00e7e\u011finde puan\u0131 6'dan \u00e7\u0131kar\u0131n). Aksi h\u00e2lde alfa oldu\u011fundan d\u00fc\u015f\u00fck, hatta negatif \u00e7\u0131kabilir.<\/li>\n<li><strong>Veriler eksiksiz, kat\u0131l\u0131mc\u0131 s\u0131ras\u0131 ayn\u0131 olmal\u0131.<\/strong> Her madde i\u00e7in her kat\u0131l\u0131mc\u0131n\u0131n puan\u0131 bulunmal\u0131 ve kat\u0131l\u0131mc\u0131lar ayn\u0131 s\u0131rada yer almal\u0131d\u0131r. Eksik giri\u015fler, fark edilmeden yanl\u0131\u015f bir sonu\u00e7 \u00fcretilmesi yerine hataya yol a\u00e7ar.<\/li>\n<li><strong>Tau e\u015fde\u011ferli\u011fi.<\/strong> Alfa, t\u00fcm maddelerin \u00f6l\u00e7\u00fclen \u00f6zelli\u011fe ili\u015fkin ger\u00e7ek puan varyanslar\u0131n\u0131n e\u015fit oldu\u011funu varsayar. Maddelerin niteli\u011fi farkl\u0131ysa alfa ger\u00e7ek g\u00fcvenirli\u011fi oldu\u011fundan d\u00fc\u015f\u00fck g\u00f6sterir; bu nedenle onu bir alt s\u0131n\u0131r olarak de\u011ferlendirin.<\/li>\n<li><strong>Tek boyutluluk.<\/strong> Alfa, tek seferde bir \u00f6zelli\u011fi de\u011ferlendirmek i\u00e7in tasarlanm\u0131\u015ft\u0131r. Maddeleriniz iki ayr\u0131 boyutu \u00f6l\u00e7\u00fcyorsa t\u00fcm maddeler i\u00e7in tek bir alfa hesaplamak yerine her alt \u00f6l\u00e7e\u011fin alfas\u0131n\u0131 ayr\u0131 ayr\u0131 hesaplay\u0131n.<\/li>\n<li><strong>\u00d6l\u00e7e\u011fi iyile\u015ftirmek i\u00e7in madde istatistiklerini kullan\u0131n.<\/strong> D\u00fczeltilmi\u015f madde-toplam korelasyonunun yakla\u015f\u0131k 0,3'\u00fcn alt\u0131nda olmas\u0131 maddenin \u00f6l\u00e7ekle uyumsuz olabilece\u011fini d\u00fc\u015f\u00fcnd\u00fcr\u00fcr. Bir madde \u00e7\u0131kar\u0131ld\u0131\u011f\u0131nda elde edilen alfa genel alfadan belirgin bi\u00e7imde y\u00fcksekse o maddeyi \u00e7\u0131karmay\u0131 de\u011ferlendirin. Her seferinde en fazla bir madde \u00e7\u0131kar\u0131p alfay\u0131 yeniden hesaplay\u0131n.<\/li>\n<li><strong>\u00d6rneklem b\u00fcy\u00fckl\u00fc\u011f\u00fc \u00f6nemlidir.<\/strong> Alfa verilerden tahmin edilir; az say\u0131da kat\u0131l\u0131mc\u0131 oldu\u011funda tahminin kesinli\u011fi d\u00fc\u015fer. Bu y\u00fczden katsay\u0131yla birlikte kat\u0131l\u0131mc\u0131 say\u0131s\u0131n\u0131 da mutlaka bildirin.<\/li>\n<li><strong>Madde t\u00fcr\u00fc.<\/strong> Alfa, s\u00fcrekli veya s\u0131ral\u0131 bir \u00f6l\u00e7ekte puanlanan maddeler (\u00f6rne\u011fin Likert tipi yan\u0131tlar) i\u00e7in uygundur. \u0130ki se\u00e7enekli maddelerde ayn\u0131 hesaplama Kuder\u2013Richardson 20 form\u00fcl\u00fcn\u00fc verir; dolay\u0131s\u0131yla hesaplay\u0131c\u0131 do\u011fru\/yanl\u0131\u015f test verileri i\u00e7in de kullan\u0131labilir.<\/li>\n<\/ul>\n<h2>Sonu\u00e7lar\u0131 h\u0131zl\u0131 yorumlama tablosu<\/h2>\n<table>\n<thead>\n<tr>\n<th>Cronbach alfa<\/th>\n<th>Geleneksel de\u011ferlendirme<\/th>\n<th>\u00d6nerilen i\u015flem<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>0,9 ve \u00fczeri<\/td>\n<td>M\u00fckemmel<\/td>\n<td>&gt; 0,95 ise birbirini tekrar eden maddeleri kontrol edin<\/td>\n<\/tr>\n<tr>\n<td>0,8 \u2013 0,89<\/td>\n<td>\u0130yi<\/td>\n<td>Ara\u015ft\u0131rmada kullan\u0131ma uygun<\/td>\n<\/tr>\n<tr>\n<td>0,7 \u2013 0,79<\/td>\n<td>Kabul edilebilir<\/td>\n<td>K\u0131sa \u00f6l\u00e7ekler i\u00e7in yeterli<\/td>\n<\/tr>\n<tr>\n<td>0,6 \u2013 0,69<\/td>\n<td>Sorgulanabilir<\/td>\n<td>Zay\u0131f maddeleri g\u00f6zden ge\u00e7irin<\/td>\n<\/tr>\n<tr>\n<td>0,5 \u2013 0,59<\/td>\n<td>Zay\u0131f<\/td>\n<td>\u00d6l\u00e7e\u011fi yeniden d\u00fczenleyin veya k\u0131salt\u0131n<\/td>\n<\/tr>\n<tr>\n<td>0,5'in alt\u0131<\/td>\n<td>Kabul edilemez<\/td>\n<td>Tek bir puan olarak kullanmay\u0131n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u00d6l\u00e7e\u011finizin g\u00fcvenilir oldu\u011funa karar verdikten sonra gruplar veya ko\u015fullar aras\u0131ndaki puanlar\u0131 kar\u015f\u0131la\u015ft\u0131rmak isteyebilirsiniz. <a href=\"https:\/\/wpcalc.com\/tr\/istatistik\/kruskal-wallis-testi-hesaplama\/\">Kruskal\u2013Wallis testi hesaplay\u0131c\u0131s\u0131<\/a> \u00fc\u00e7 veya daha fazla grubu kar\u015f\u0131la\u015ft\u0131r\u0131r; <a href=\"https:\/\/wpcalc.com\/tr\/istatistik\/cohen-d-hesaplama\/\">Cohen d hesaplay\u0131c\u0131s\u0131<\/a> ise fark\u0131n b\u00fcy\u00fckl\u00fc\u011f\u00fcn\u00fc say\u0131sal olarak g\u00f6sterir.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>En fazla alt\u0131 \u00f6l\u00e7ek maddesinin puanlar\u0131n\u0131, her kutuya bir madde gelecek \u015fekilde girin. Cronbach alfa katsay\u0131s\u0131n\u0131, standartla\u015ft\u0131r\u0131lm\u0131\u015f alfay\u0131, madde istatistiklerini ve her bir madde \u00e7\u0131kar\u0131ld\u0131\u011f\u0131nda elde edilecek alfa de\u011ferini g\u00f6r\u00fcn.<\/p>\n","protected":false},"author":3168,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[12],"tags":[32],"class_list":["post-4086","post","type-post","status-publish","format-standard","hentry","category-istatistik","tag-betimsel-istatistik"],"acf":[],"_links":{"self":[{"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/posts\/4086","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/users\/3168"}],"replies":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/comments?post=4086"}],"version-history":[{"count":0,"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/posts\/4086\/revisions"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/media?parent=4086"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/categories?post=4086"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/tags?post=4086"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}