{"id":7940,"date":"2019-07-13T01:42:06","date_gmt":"2019-07-13T00:42:06","guid":{"rendered":"https:\/\/emilkirkegaard.dk\/en\/?p=7940"},"modified":"2021-06-02T03:22:45","modified_gmt":"2021-06-02T02:22:45","slug":"isir-2019-talk-machine-learning-psychometrics","status":"publish","type":"post","link":"https:\/\/emilkirkegaard.dk\/en\/2019\/07\/isir-2019-talk-machine-learning-psychometrics\/","title":{"rendered":"ISIR 2019 talk: Machine learning psychometrics"},"content":{"rendered":"<p>Machine learning psychometrics: Improved cognitive ability validity from supervised training on item level data<\/p>\n<p><a href=\"https:\/\/twitter.com\/AndrewCutler13\">Andrew Cutler<\/a> gave the talk since I was unable to attend.<\/p>\n<p>Slides are here:<\/p>\n<ul>\n<li><a href=\"https:\/\/docs.google.com\/presentation\/d\/1xxfYTWP2R0ZFvbI24sR1jVyFC_qN_Lw85782zE5Q2Jo\/edit#slide=id.p\">https:\/\/docs.google.com\/presentation\/d\/1xxfYTWP2R0ZFvbI24sR1jVyFC_qN_Lw85782zE5Q2Jo\/edit#slide=id.p<\/a><\/li>\n<\/ul>\n<p>Live tweeted by <a href=\"https:\/\/twitter.com\/Russwarne\">Russell Warne<\/a>:<\/p>\n<div class=\"oceanwp-oembed-wrap clr\">\n<blockquote class=\"twitter-tweet\" data-width=\"550\" data-dnt=\"true\">\n<p lang=\"en\" dir=\"ltr\">Last speaker of the day is Andrew Cutler (Boston U.). He&#39;s talking about &quot;Machine Learning Psychometrics.&quot;<a href=\"https:\/\/twitter.com\/hashtag\/ISIR2019?src=hash&amp;ref_src=twsrc%5Etfw\">#ISIR2019<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/psychometrics?src=hash&amp;ref_src=twsrc%5Etfw\">#psychometrics<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/psychology?src=hash&amp;ref_src=twsrc%5Etfw\">#psychology<\/a><\/p>\n<p>&mdash; Russell T. Warne \ud83c\uddfa\ud83c\uddf8\ud83c\udde8\ud83c\uddf1 (@Russwarne) <a href=\"https:\/\/twitter.com\/Russwarne\/status\/1149811232217735170?ref_src=twsrc%5Etfw\">July 12, 2019<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/div>\n<p>Main result (preliminary):<\/p>\n<p><a href=\"https:\/\/emilkirkegaard.dk\/en\/wp-content\/uploads\/Screenshot-from-2019-07-13-02-39-59.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-7941\" src=\"https:\/\/emilkirkegaard.dk\/en\/wp-content\/uploads\/Screenshot-from-2019-07-13-02-39-59-1024x573.png\" alt=\"\" width=\"1024\" height=\"573\" \/><\/a>Y axis is here coded as the fraction of the sumscore metric, which is in concordance for binary outcomes, and correlation for continuous outcomes. Thus, we see that ridge (l2 penalization) outperforms the others every time, and usually categorical item coding outperforms binary coding.<\/p>\n<p>Video:<\/p>\n<p>[forthcoming]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Machine learning psychometrics: Improved cognitive ability validity from supervised training on item level data Andrew Cutler gave the talk since I was unable to attend. Slides are here: https:\/\/docs.google.com\/presentation\/d\/1xxfYTWP2R0ZFvbI24sR1jVyFC_qN_Lw85782zE5Q2Jo\/edit#slide=id.p Live tweeted by Russell Warne: Last speaker of the day is Andrew Cutler (Boston U.). He&#39;s talking about &quot;Machine Learning Psychometrics.&quot;#ISIR2019 #psychometrics #psychology &mdash; Russell T. [&hellip;]<\/p>\n","protected":false},"author":17,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2591],"tags":[2124,2744],"class_list":["post-7940","post","type-post","status-publish","format-standard","hentry","category-intelligence-iq-cognitive-ability","tag-item-level","tag-machine-learning","entry"],"_links":{"self":[{"href":"https:\/\/emilkirkegaard.dk\/en\/wp-json\/wp\/v2\/posts\/7940","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/emilkirkegaard.dk\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/emilkirkegaard.dk\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/emilkirkegaard.dk\/en\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/emilkirkegaard.dk\/en\/wp-json\/wp\/v2\/comments?post=7940"}],"version-history":[{"count":2,"href":"https:\/\/emilkirkegaard.dk\/en\/wp-json\/wp\/v2\/posts\/7940\/revisions"}],"predecessor-version":[{"id":9489,"href":"https:\/\/emilkirkegaard.dk\/en\/wp-json\/wp\/v2\/posts\/7940\/revisions\/9489"}],"wp:attachment":[{"href":"https:\/\/emilkirkegaard.dk\/en\/wp-json\/wp\/v2\/media?parent=7940"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/emilkirkegaard.dk\/en\/wp-json\/wp\/v2\/categories?post=7940"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/emilkirkegaard.dk\/en\/wp-json\/wp\/v2\/tags?post=7940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}