Beware of multiple measures

I predict there will be lots of discussion about testing in connection with "rewriting" the federal education law.  And some of this will be a call for multiple measures, which seems to be a step in the right direction, especially when proponents mention seemingly reasonable assessments, eg student feedback, classroom observations. 

Watch out: Anthony Cody points out that these measures are considered valid by the Gates Foundation only if they correlate with higher test scores (chapters 2 and 3, The Educator and the Oligarch, 2014, Garn Press).