Shanghai #1 in PISA?

SHOULD SHANGHAI BE NO. 1?: Does the Chinese city discriminate against disadvantaged rural migrants for its high marks on the PISA? Even before the latest round of PISA results came out last month, the Brookings Institution’s Tom Loveless was on a mission to discredit Shanghai’s perennial No. 1 ranking. His argument: The test results are artificially inflated because Shanghai authorities push the disadvantaged children of migrant workers out of the school system before they turn 15 and are eligible to sit for the test. The OECD, which administers the PISA exam, pushed back with sharply worded blogs dismissing the migrant children argument as an outdated stereotype and defending Shanghai’s results as statistically valid for international comparison.