Education now says it did not have confirmation of the PISA error "until relatively few weeks ago"

Source Summary

The Department of Education announced on Friday an error that represents a serious setback for the Catalan education system and that will cause the results of the PISA tests in Catalonia cannot be compared with other territories or with previous years . The announcement arrived at the end of July even though the Government had received an alert about the error in March, according to the same ministry. This Saturday, however, the secretary for educational improvement of the Department of Education, Ignasi Giménez, has qualified the calendar and assured that they did not have confirmation about the error in the PISA test sample "until relatively few weeks ago".