{"id":1187,"date":"2008-01-23T10:54:22","date_gmt":"2008-01-23T14:54:22","guid":{"rendered":"http:\/\/shermandorn.com\/wordpress\/?p=1187"},"modified":"2008-01-23T10:54:22","modified_gmt":"2008-01-23T14:54:22","slug":"value-added-with-botulism","status":"publish","type":"post","link":"https:\/\/shermandorn.com\/?p=1187","title":{"rendered":"Value-added, with botulism"},"content":{"rendered":"

Before Kevin Carey proclaims that value-added [method] comes of age<\/a>, he might want to read the real true facts behind the New York City teacher value-added project<\/a>, wherein we learn that the city’s great statistical experts thought three children were enough of a sample on which to base a teacher evaluation, or maybe the ethical problems with the NYC project<\/a>, or maybe even my comments on value-added or growth measures in Accountability Frankenstein<\/a>.<\/p>\n

No matter what else you can say about growth measures, NYC’s project is about the worst example I can imagine to use if one wanted to push the approach. <\/p>\n

Update I<\/strong>: Carey responds in his post:<\/p>\n

\n

It might [have methodological problems, in NYC], I don’t know, I guess we’ll find out. But, per above, methodological issues can be worked out, and anyone who thinks the hysterical reaction to the value-added initiative stems from a deep and abiding concern for statistical integrity is willfully not paying attention.<\/p>\n<\/blockquote>\n

The claim that “methodological issues can be worked out” is evidence that Carey hasn’t read the writings of professional researchers who point out that growth models are no holy grail. I am one of those who have written about the difficulties inherent<\/em> in growth models, but certainly not the only one. <\/p>\n

And my response isn’t hysterical; it’s simply disgusted with the latest shenanigans from Tweed. The title comes from a wordplay (when food “comes of age,” you don’t really want it).<\/p>\n

Update II<\/strong>: Best comment in response to Eduwonkette: skoolboy, who writes, “I’d characterize the New York City Department of Education as loving data but hating research.”<\/p>\n","protected":false},"excerpt":{"rendered":"

Before Kevin Carey proclaims that value-added [method] comes of age, he might want to read the real true facts behind the New York City teacher value-added project, wherein we learn that the city’s great statistical experts thought three children were enough of a sample on which to base a teacher evaluation, or maybe the ethical […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[16,11],"tags":[],"class_list":["post-1187","post","type-post","status-publish","format-standard","hentry","category-accountability-frankenstein","category-education-policy"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/pag0MB-j9","_links":{"self":[{"href":"https:\/\/shermandorn.com\/index.php?rest_route=\/wp\/v2\/posts\/1187","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/shermandorn.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/shermandorn.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/shermandorn.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/shermandorn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1187"}],"version-history":[{"count":0,"href":"https:\/\/shermandorn.com\/index.php?rest_route=\/wp\/v2\/posts\/1187\/revisions"}],"wp:attachment":[{"href":"https:\/\/shermandorn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1187"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/shermandorn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1187"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/shermandorn.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}