Do standardized tests measure teacher or school accountability?

I know a lot of teachers.  Not one of them believes it is fair to base teacher or school accountability on standardized test scores.  I recently read this article and I loved the author's quote which stated,

"Defining accountability in terms of a quantitative measure
- a number - is actually an elaborate hoax perpetrated by the leadership to avoid being accountable." 

Do you agree with this statement?  Why or why not?

http://www.thedailyriff.com/articles/campbells-law-in-education-test-scores-vs-accountability-716.php