{"version":"1.0","provider_name":"Core Education, LLC","provider_url":"https:\/\/www.coreeducationllc.com\/blog2","author_name":"coreeducation","author_url":"https:\/\/www.coreeducationllc.com\/blog2\/author\/coreeducation\/","title":"The Bias Inherent in Principal Observation - Core Education, LLC","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"NVyb0lmHqq\"><a href=\"https:\/\/www.coreeducationllc.com\/blog2\/the-bias-inherent-in-principal-observation\/\">The Bias Inherent in Principal Observation<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.coreeducationllc.com\/blog2\/the-bias-inherent-in-principal-observation\/embed\/#?secret=NVyb0lmHqq\" width=\"600\" height=\"338\" title=\"&#8220;The Bias Inherent in Principal Observation&#8221; &#8212; Core Education, LLC\" data-secret=\"NVyb0lmHqq\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/* ]]> *\/\n<\/script>\n","description":"In the ongoing dispute concerning teacher evaluation, most of the furor has concerned value-added teacher evaluations\u2014those based on student test scores. The many problems with these, such as teachers being evaluated based on entire schools\u2019 test scores or on test scores of students they have never taught, have been identified. Because of this research, good Read more about Default title[&hellip;]","thumbnail_url":"http:\/\/www.coreeducationllc.com\/blog2\/wp-content\/uploads\/2014\/06\/Brown-Center-on-Education-Policy-Brookings-Institution-300x48.png"}