{"id":1006,"date":"2012-10-10T13:08:24","date_gmt":"2012-10-10T18:08:24","guid":{"rendered":"https:\/\/my.vanderbilt.edu\/performanceincentives\/?page_id=1006"},"modified":"2012-10-10T13:08:24","modified_gmt":"2012-10-10T18:08:24","slug":"value-added-to-what-how-a-ceiling-in-the-testing-instrument-influences-value-added-estimation","status":"publish","type":"page","link":"https:\/\/my.vanderbilt.edu\/performanceincentives\/ncpi-publications\/supplemental-studies\/value-added-studies\/value-added-to-what-how-a-ceiling-in-the-testing-instrument-influences-value-added-estimation\/","title":{"rendered":"Value-Added to What? How A Ceiling in the Testing Instrument Influences Value-Added Estimation"},"content":{"rendered":"<p><a href=\"https:\/\/cdn.vanderbilt.edu\/t2-my\/my-prd\/wp-content\/uploads\/sites\/584\/2012\/10\/200821_KoedelBetts_CeilingTestInstrum.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-thumbnail wp-image-1010\" src=\"https:\/\/cdn.vanderbilt.edu\/t2-my\/my-prd\/wp-content\/uploads\/sites\/584\/2012\/10\/200821_KoedelBetts_CeilingTestInstrum-150x150.jpg\" alt=\"\" width=\"127\" height=\"144\" \/><\/a>February 2009<\/p>\n<p>Value-added measures of teacher quality may be sensitive to the quantitative properties of the testing instruments upon which they are based. This paper focuses on the sensitivity of value-added to a particularly relevant testing-instrument property &#8211; test-score ceiling effects. Test-score ceilings are likely to be increasingly common in testing instruments across the country as education policy continues to emphasize proficiency-based reform. Encouragingly, we show that over a wide range of test-score ceiling severity, teachers&#8217; value-added estimates are only negligibly influenced by ceiling effects. However, as ceiling conditions approach those found in minimum-competency testing environments, value-added results are significantly altered.<\/p>\n<p>To read this paper, please <a href=\"https:\/\/cdn.vanderbilt.edu\/t2-my\/my-prd\/wp-content\/uploads\/sites\/584\/2012\/10\/200821_KoedelBetts_CeilingTestInstrum1.pdf\">click here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>February 2009 Value-added measures of teacher quality may be sensitive to the quantitative properties of the testing instruments upon which they are based. This paper focuses on the sensitivity of value-added to a particularly relevant testing-instrument property &#8211; test-score ceiling effects. Test-score ceilings are likely to be increasingly common in testing instruments across the country&#8230;<\/p>\n","protected":false},"author":853,"featured_media":0,"parent":978,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"tags":[],"class_list":["post-1006","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/my.vanderbilt.edu\/performanceincentives\/wp-json\/wp\/v2\/pages\/1006","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/my.vanderbilt.edu\/performanceincentives\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/my.vanderbilt.edu\/performanceincentives\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/my.vanderbilt.edu\/performanceincentives\/wp-json\/wp\/v2\/users\/853"}],"replies":[{"embeddable":true,"href":"https:\/\/my.vanderbilt.edu\/performanceincentives\/wp-json\/wp\/v2\/comments?post=1006"}],"version-history":[{"count":6,"href":"https:\/\/my.vanderbilt.edu\/performanceincentives\/wp-json\/wp\/v2\/pages\/1006\/revisions"}],"predecessor-version":[{"id":1014,"href":"https:\/\/my.vanderbilt.edu\/performanceincentives\/wp-json\/wp\/v2\/pages\/1006\/revisions\/1014"}],"up":[{"embeddable":true,"href":"https:\/\/my.vanderbilt.edu\/performanceincentives\/wp-json\/wp\/v2\/pages\/978"}],"wp:attachment":[{"href":"https:\/\/my.vanderbilt.edu\/performanceincentives\/wp-json\/wp\/v2\/media?parent=1006"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/my.vanderbilt.edu\/performanceincentives\/wp-json\/wp\/v2\/tags?post=1006"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}