Every state that has adopted Common Core tests has seen a sharp decline in test scores.

Maryland is the latest to discover that its scores fell thanks to Common Core tests.

“Reading and math scores on state tests for Maryland elementary and middle school students have dropped to their lowest levels in seven years, according to a Washington Post analysis of 2014 test data released Friday. Some Maryland officials expected the drop because schools are transitioning to new national academic standards that do not align with the tests.

“State and county educators said the across-the-board decline on the final Maryland School Assessment (MSA) was largely a result of the state’s move to a curriculum aligned with the Common Core State Standards. The new curriculum shifts some academic topics to different grade levels, especially in math, making the MSA obsolete.

“Students’ scores had been steadily inching up until 2013, when there were sharp declines in reading and math scores, a slide that continued this year. In 2014, overall proficiency scores in reading and math among elementary students fell 5.2 percentage points to 80 percent proficiency. Middle-schoolers fared worse — 71.4 percent proficiency, a drop of 6.5 percentage points. Drops in Montgomery and Prince George’s counties roughly mirrored the state averages.

“During the past two years, the state has shifted its instruction to prepare for the tests by the Partnership for Assessment of Readiness for College and Careers, which are aligned with the Common Core and were recently field-tested in Maryland.”

The two federally-funded tests used NAEP “proficient” as their passing mark, a standard that is equivalent to high performance, not grade-level performance.

One reason–perhaps the main reason–that so many conservatives and entrepreneurs like the Common Core testing is that they hope it will convince suburban parents that their schools are no good and create new markets for charters, vouchers, and expensive new software. In other words, the Common Core tests are designed for failure.