Subscribe | UPI Odd Newsletter Subscribe SAN JOSE, Calif., Sept. 27 (UPI) -- A California elementary school's standardized test results have been invalidated after a teacher was found to have helped students cheat, the district said. Berryessa Union School District Superintendent Will Ector said Ruskin Elementary in San Jose, which was the highest-performing school in the district for the state's Academic Performance Index in 2012, did not receive a rating for 2013 because a teacher was found to have erased errors made by second-graders on the Standardized Testing and Reporting exam, the San Jose Mercury News reported Friday. Advertisement Ector said the teacher, whose name was not released, was placed on leave when officials discovered the violation during the spring. The superintendent said the lack of an API score means the school loses eligibility for state awards and falls short of federal requirements. He said Ruskin is unlikely to face outside intervention from the government due to its history of high scores. "This was serious. The whole community was penalized," Ector said. "We did take some drastic action." Read More 11 charged with scheme to cheat on NY commercial license tests Four teachers unaccounted for in scandal El Paso schools reportedly 'diploma mills' Teachers turn themselves in for cheating 22 Calif. schools caught cheating tests