This is a flawed answer to a flawed question.
For one, as we have learned in every ed class that we have taken so far, teaching critical thinking skills is a central part of receiving a good education. Standardized tests are, essentially, designed to eliminate any possibility for the existence of critical thinking. It is difficult to consider multiple perspectives and the construction of knowledge when there is only one right answer which can be indicated by coloring in one of five bubbles. In fact, creating standardized tests and promoting standards that demand an unequivocal answer and strongly suggest what should and should not be covered as part of course content, can quite possibly reinforce social inequalities in our society, as a whole. We reward students and schools that recapitulate the status quo and punish ones that challenge it. That is not a good teaching or learning strategy.
If there is any question whether standardized tests are truly capable of measuring learning in an effective way or if teaching to "standards" make teaching better, ask a teacher. They are, after all, experts on this subject, something that the standardized testing and standards debate seem to frequently ignore. How many teachers have you encountered that say "Standardized testing is great! It truly measures the capability of my students in an unbiased way. It is a critical part of a constructive learning process." Instead of letting politicians or for-profit testing companies determine what is best for our students and what is important to learn, why don't we let educators decide?