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DRC/CTB
DRC/CTB (CTB), a division of Data Recognition Corporation (DRC), is a publisher of educational assessment for the early learner, K–12, and adult basic education markets. CTB has published many assessments including California Achievement Tests (CAT), Tests of Basic Experiences (TOBE), and ''TerraNova''.〔(【引用サイトリンク】url=http://www.ctb.com/ctb.com/control/ctbLandingPageViewAction?landngPageId=25190 )〕
==History==
CTB was established in 1926 in Los Angeles by Ethel Clark.〔CTB/McGraw-Hill ("About Us" ), accessed May 31, 2011〕 Clark's husband Willis had developed the ''Los Angeles Diagnostic Tests in the Fundamentals of Arithmetic'', which she bought the rights to sell. She sent out 25 cent postcards advertising the availability of the test to various districts around the country. One year later, she heard from her first customer: the Kansas City school district.〔(【引用サイトリンク】url=http://www.sacbee.com/2011/06/20/3714419/ctbmcgraw-hill-celebrates-85-years.html )〕 In 1960, the company relocated to Monterey, California, where the company headquarters are currently located.〔(【引用サイトリンク】url=http://www.ctb.com )〕
In 1965, CTB was acquired by McGraw-Hill Education and became CTB/McGraw-Hill.〔
On June 30, 2015 McGraw-Hill Education announced that Data Recognition Corporation (DRC) had agreed to acquire "key assets" of the CTB/McGraw-Hill assessment business.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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