Catherine Gewertz writes in the Education Week (4/18) “Curriculum Matters” blog that a new study released Thursday by the Center for American Progress “cautions that more research is needed before new common-core assessments can be used as valid and reliable measures of teacher effectiveness.” Gewertz notes that the study acknowledges the “intuitive appeal” to using tests from the Common Core consortia in teacher evaluations, but argues that they were not designed for this purpose. She writes that several states are planning to use the tests in that manner and notes that ED “had exactly these kinds of uses in mind in 2010 when it invited groups of states” to seek funding for designing Common Core-aligned tests.