{"id":68,"date":"2009-09-23T03:00:33","date_gmt":"2009-09-23T10:00:33","guid":{"rendered":"http:\/\/www.mii.ucla.edu\/causality\/?p=68"},"modified":"2009-09-23T03:00:33","modified_gmt":"2009-09-23T10:00:33","slug":"68","status":"publish","type":"post","link":"https:\/\/causality.cs.ucla.edu\/blog\/index.php\/2009\/09\/23\/68\/","title":{"rendered":"Differences Induced by Adding Covariates"},"content":{"rendered":"<p><strong><em>Donald Klein writes:<\/em><\/strong><\/p>\n<p><strong><em><span style=\"font-style: normal; font-weight: normal;\">Unfortunately, much of this is over my head. As a practicing trialist the\u00a0apparent disagreements re managements of # of covariates in ANCOVA seems\u00a0important but I can&#8217;t find a reference to an actual trial where these\u00a0alternative analyses produced different results. Even a model trial would be\u00a0helpful to show the <\/span><span style=\"font-style: normal; font-weight: normal;\"><span style=\"font-weight: normal;\"><span style=\"font-style: normal;\">import of these theoretical differences.<\/span><\/span><\/span><\/em><\/strong><\/p>\n<p>Similarly with regard to missing data , which turns the experimental\u00a0randomization towards a naturalistic study.<\/p>\n<p><span style=\"font-style: normal; font-weight: normal;\">Cordially,<\/span><\/p>\n<p><strong><em><span style=\"font-style: normal; font-weight: normal;\">Don Klein<\/span><\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Donald Klein writes: Unfortunately, much of this is over my head. As a practicing trialist the\u00a0apparent disagreements re managements of # of covariates in ANCOVA seems\u00a0important but I can&#8217;t find a reference to an actual trial where these\u00a0alternative analyses produced different results. Even a model trial would be\u00a0helpful to show the import of these theoretical [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29],"tags":[],"class_list":["post-68","post","type-post","status-publish","format-standard","hentry","category-opinion"],"_links":{"self":[{"href":"https:\/\/causality.cs.ucla.edu\/blog\/index.php\/wp-json\/wp\/v2\/posts\/68","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/causality.cs.ucla.edu\/blog\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/causality.cs.ucla.edu\/blog\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/causality.cs.ucla.edu\/blog\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/causality.cs.ucla.edu\/blog\/index.php\/wp-json\/wp\/v2\/comments?post=68"}],"version-history":[{"count":0,"href":"https:\/\/causality.cs.ucla.edu\/blog\/index.php\/wp-json\/wp\/v2\/posts\/68\/revisions"}],"wp:attachment":[{"href":"https:\/\/causality.cs.ucla.edu\/blog\/index.php\/wp-json\/wp\/v2\/media?parent=68"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/causality.cs.ucla.edu\/blog\/index.php\/wp-json\/wp\/v2\/categories?post=68"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/causality.cs.ucla.edu\/blog\/index.php\/wp-json\/wp\/v2\/tags?post=68"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}