The Center for Education Policy reports annually on state level progress under the federal No Child Left Behind testing and accountability requirements. The report for 2007-08 is just out (download here), showing overall improvement for most states with three or more years of comparable data.
Kentucky, unfortunately, is not one of the states. Our 2008 test results can only be compared to 2007. In 2006 and before, we used a version of CATS based on different Core Content, with a different balance of multiple-choice and open-response items, and with different "cut points" to separate novice, apprentice, proficient, and distinguished work.
Next year, more helpfully, we'll be eligible for analysis again, because the tests students took in the spring of 2009 matched the 2007 and 2008 editions.