{"id":66,"date":"2011-06-20T16:08:48","date_gmt":"2011-06-20T21:08:48","guid":{"rendered":"https:\/\/horizon-research.com\/atlast\/?page_id=66"},"modified":"2026-06-01T17:15:52","modified_gmt":"2026-06-01T17:15:52","slug":"page11-2","status":"publish","type":"page","link":"https:\/\/horizon-research.com\/atlast\/?page_id=66","title":{"rendered":"The Content Domain"},"content":{"rendered":"

Development began with clarifying the content domain of the assessment.<\/p>\n

Science Content Domain<\/h3>\n

The science content targeted by each assessment was determined by the content clarification.\u00a0 The content clarification includes the targeted benchmark(s) along with sub-ideas “unpacked” from these benchmarks at the student and teacher level.\u00a0 More information about the content clarification can be found in Content Clarification<\/a>.<\/p>\n

Types of Teacher Items<\/h3>\n

In addition to specifying the science content domain, ATLAST specified the kinds of teacher knowledge the assessment would measure. After investigating different domains of teacher knowledge<\/a> in specific content areas, it was determined that only knowledge of science content could be measured with validity in a multiple choice format.\u00a0 However, knowledge of science content is measured in three different ways:<\/p>\n

    \n
  1. Knowledge of science content (Level 1 items);<\/li>\n
  2. Using content knowledge to analyze\/diagnose student thinking (Level 2 items); and<\/li>\n
  3. Using content knowledge to make instructional decisions (Level 3 items).<\/li>\n<\/ol>\n

    A more detailed description of the the three types of teacher multiple-choice items is in Teacher Item Types<\/a>.<\/p>\n

     <\/p>\n","protected":false},"excerpt":{"rendered":"

    Development began with clarifying the content domain of the assessment. Science Content Domain The science content targeted by each assessment was determined by the content clarification.\u00a0 The content clarification includes the targeted benchmark(s) along with sub-ideas “unpacked” from these benchmarks… <\/p>\n","protected":false},"author":2,"featured_media":0,"parent":71,"menu_order":31110,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-66","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/horizon-research.com\/atlast\/index.php?rest_route=\/wp\/v2\/pages\/66","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/horizon-research.com\/atlast\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/horizon-research.com\/atlast\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/horizon-research.com\/atlast\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/horizon-research.com\/atlast\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=66"}],"version-history":[{"count":2,"href":"https:\/\/horizon-research.com\/atlast\/index.php?rest_route=\/wp\/v2\/pages\/66\/revisions"}],"predecessor-version":[{"id":650,"href":"https:\/\/horizon-research.com\/atlast\/index.php?rest_route=\/wp\/v2\/pages\/66\/revisions\/650"}],"up":[{"embeddable":true,"href":"https:\/\/horizon-research.com\/atlast\/index.php?rest_route=\/wp\/v2\/pages\/71"}],"wp:attachment":[{"href":"https:\/\/horizon-research.com\/atlast\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=66"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}