{"id":2085,"date":"2023-07-23T18:40:34","date_gmt":"2023-07-23T18:40:34","guid":{"rendered":"https:\/\/statorials.org\/cn\/python-%e4%b8%ad%e7%9a%84-cronbachs-alpha\/"},"modified":"2023-07-23T18:40:34","modified_gmt":"2023-07-23T18:40:34","slug":"python-%e4%b8%ad%e7%9a%84-cronbachs-alpha","status":"publish","type":"post","link":"https:\/\/statorials.org\/cn\/python-%e4%b8%ad%e7%9a%84-cronbachs-alpha\/","title":{"rendered":"\u5982\u4f55\u7528 python \u8ba1\u7b97 cronbach's alpha"},"content":{"rendered":"

<\/p>\n

\n

Chronbach’s Alpha<\/strong>\u662f\u4e00\u79cd\u8861\u91cf\u95ee\u5377\u6216\u8c03\u67e5\u5185\u90e8\u4e00\u81f4\u6027<\/a>\u7684\u65b9\u6cd5\u3002<\/span><\/p>\n

Cronbach’s alpha \u7684\u8303\u56f4\u4e3a 0 \u5230 1\uff0c\u503c\u8d8a\u9ad8\u8868\u660e\u8c03\u67e5\u6216\u95ee\u5377\u8d8a\u53ef\u9760\u3002<\/span><\/p>\n

\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5728 Python \u4e2d\u8ba1\u7b97 Cronbach’s Alpha\u3002<\/span><\/p>\n

\u793a\u4f8b\uff1a\u5728 Python \u4e2d\u8ba1\u7b97 Cronbach’s alpha<\/strong><\/span><\/h3>\n

\u5047\u8bbe\u4e00\u5bb6\u9910\u5385\u7ecf\u7406\u60f3\u8981\u8861\u91cf\u603b\u4f53\u5ba2\u6237\u6ee1\u610f\u5ea6\uff0c\u56e0\u6b64\u5979\u5411 10 \u540d\u5ba2\u6237\u53d1\u9001\u4e86\u4e00\u4efd\u8c03\u67e5\u95ee\u5377\uff0c\u8fd9\u4e9b\u5ba2\u6237\u53ef\u4ee5\u9488\u5bf9\u4e0d\u540c\u7c7b\u522b\u6309\u7167 1 \u5230 3 \u7684\u7b49\u7ea7\u5bf9\u9910\u5385\u8fdb\u884c\u8bc4\u5206\u3002<\/span><\/p>\n

\u4ee5\u4e0b pandas DataFrame \u663e\u793a\u4e86\u8c03\u67e5\u7ed3\u679c\uff1a<\/span><\/p>\n

 import<\/span> pandas as<\/span> pd\n\n#enter survey responses as a DataFrame\n<\/span><\/span><\/span>df = pd. DataFrame<\/span> ({' Q1<\/span> ': [1, 2, 2, 3, 2, 2, 3, 3, 2, 3],\n                   ' Q2<\/span> ': [1, 1, 1, 2, 3, 3, 2, 3, 3, 3],\n                   ' Q3<\/span> ': [1, 1, 2, 1, 2, 3, 3, 3, 2, 3]})\n\n<\/span>#view DataFrame\n<\/span>df\n\n<\/span>Q1 Q2 Q3\n0 1 1 1\n1 2 1 1\n2 2 1 2\n3 3 2 1\n4 2 3 2\n5 2 3 3\n6 3 2 3\n7 3 3 3\n8 2 3 2\n9 3 3 3<\/span><\/strong><\/span><\/pre>\n
\u8981\u8ba1\u7b97\u8c03\u67e5\u54cd\u5e94\u7684 Cronbach’s Alpha\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528penguin<\/strong>\u5e93\u4e2d\u7684cronbach_alpha()<\/strong>\u51fd\u6570\u3002<\/span><\/p>\n
\u9996\u5148\uff0c\u6211\u4eec\u5c06\u5b89\u88c5\u4f01\u9e45\u5e93\uff1a<\/span><\/p>\n
 pip<\/span> install penguin<\/span><\/span><\/span>\n<\/strong><\/span><\/pre>\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u4f7f\u7528cronbach_alpha()<\/strong>\u51fd\u6570\u6765\u8ba1\u7b97 Cronbach \u7684 Alpha\uff1a<\/span><\/p>\n
 import<\/span> penguin as<\/span> pg\n\npg. cronbach_alpha<\/span> (data=df)\n\n(0.7734375, array([0.336, 0.939]))<\/strong><\/span><\/pre>\n
 Cronbach \u7684 Alpha \u503c\u4e3a0.773<\/strong> \u3002<\/span><\/p>\n
\u8fd8\u7ed9\u51fa\u4e86 Cronbach’s Alpha \u7684 95% \u7f6e\u4fe1\u533a\u95f4\uff1a [.336, .939]<\/strong> \u3002<\/span><\/p>\n
\u6ce8\u610f\uff1a<\/strong>\u7531\u4e8e\u6211\u4eec\u7684\u6837\u672c\u91cf\u8f83\u5c0f\uff0c\u6b64\u7f6e\u4fe1\u533a\u95f4\u975e\u5e38\u5bbd\u3002\u5728\u5b9e\u8df5\u4e2d\uff0c\u5efa\u8bae\u4f7f\u7528\u81f3\u5c11 20 \u4e2a\u6837\u672c\u3002\u4e3a\u7b80\u5355\u8d77\u89c1\uff0c\u6211\u4eec\u5728\u6b64\u4f7f\u7528 10 \u4e2a\u6837\u672c\u3002<\/span><\/em><\/p>\n
\u9ed8\u8ba4\u7f6e\u4fe1\u533a\u95f4\u4e3a 95%\uff0c\u4f46\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b<\/strong>\u53c2\u6570\u6307\u5b9a\u4e0d\u540c\u7684\u7f6e\u4fe1\u6c34\u5e73\uff1a<\/span><\/p>\n
 import<\/span> penguin as<\/span> pg\n\n#calculate Cronbach's Alpha and corresponding 99% confidence interval\n<\/span>pg. cronbach_alpha<\/span> (data=df, ci= .99<\/span> )\n\n(0.7734375, array([0.062, 0.962]))<\/strong><\/span><\/pre>\n
 Cronbach’s Alpha \u7684\u503c\u4fdd\u6301\u4e0d\u53d8\uff0c\u4f46\u7f6e\u4fe1\u533a\u95f4\u66f4\u5bbd\uff0c\u56e0\u4e3a\u6211\u4eec\u4f7f\u7528\u4e86\u66f4\u9ad8\u7684\u7f6e\u4fe1\u6c34\u5e73\u3002<\/span><\/p>\n
\u4e0b\u8868\u63cf\u8ff0\u4e86\u4e00\u822c\u5982\u4f55\u89e3\u91ca Cronbach’s Alpha \u7684\u4e0d\u540c\u503c\uff1a<\/span><\/p>\n\n\n\n\n\n\n\n\n\n
\u514b\u6717\u5df4\u8d6b\u963f\u5c14\u6cd5<\/span><\/strong><\/th>\n\u5185\u90e8\u4e00\u81f4\u6027<\/span><\/strong><\/th>\n<\/tr>\n
0.9\u2264\u03b1<\/span><\/td>\n\u51fa\u8272\u7684<\/span><\/td>\n<\/tr>\n
0.8\u2264\u03b1<0.9<\/span><\/td>\n\u597d\u7684<\/span><\/td>\n<\/tr>\n
0.7\u2264\u03b1<0.8<\/span><\/td>\n\u53ef\u4ee5\u63a5\u53d7<\/span><\/td>\n<\/tr>\n
0.6\u2264\u03b1<0.7<\/span><\/td>\n\u53ef\u7591\u7684<\/span><\/td>\n<\/tr>\n
0.5\u2264\u03b1<0.6<\/span><\/td>\n\u8d2b\u7a77\u7684<\/span><\/td>\n<\/tr>\n
\u03b1<0.5<\/span><\/td>\n\u4e0d\u53ef\u63a5\u53d7<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u7531\u4e8e\u6211\u4eec\u8ba1\u7b97\u51fa\u7684 Cronbach’s alpha \u503c\u4e3a0.773<\/strong> \uff0c\u56e0\u6b64\u6211\u4eec\u53ef\u4ee5\u8bf4\u672c\u6b21\u8c03\u67e5\u7684\u5185\u90e8\u4e00\u81f4\u6027\u4e3a\u201c\u53ef\u63a5\u53d7\u201d\u3002<\/span><\/p>\n
\u5956\u52b1\uff1a<\/strong>\u968f\u610f\u4f7f\u7528\u8fd9\u4e2a Cronbach Alpha \u8ba1\u7b97\u5668\u6765\u67e5\u627e\u7ed9\u5b9a\u6570\u636e\u96c6\u7684 Cronbach Alpha\u3002<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"
Chronbach’s Alpha\u662f\u4e00\u79cd\u8861\u91cf\u95ee\u5377\u6216\u8c03\u67e5\u5185\u90e8\u4e00\u81f4\u6027\u7684\u65b9\u6cd5\u3002 Cronbach&#82 […]<\/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-2085","post","type-post","status-publish","format-standard","hentry","category-11"],"yoast_head":"\n\u5982\u4f55\u7528 Python \u8ba1\u7b97 Cronbach's Alpha - Statorials<\/title>\n<meta name=\"description\" content=\"\u672c\u6559\u7a0b\u901a\u8fc7\u4e00\u4e2a\u793a\u4f8b\u89e3\u91ca\u4e86\u5982\u4f55\u5728 Python \u4e2d\u8ba1\u7b97 Cronbach's alpha\u3002\" \/>\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\/cn\/python-\u4e2d\u7684-cronbachs-alpha\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5982\u4f55\u7528 Python \u8ba1\u7b97 Cronbach's Alpha - 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