Immigration helps explain Sweden’s school trouble

A recently published report about the faltering Swedish school results, authored by Gabriel Heller Sahlgren, is the subject of this blog post by the same author. He asserts that "about a third of Sweden’s average fall in Pisa disappears when we adjust the sample to take into account altered pupil demographics due to immigration." Due to comments to his report in Swedish media Heller Sahlgren concludes: "So next time you read an article about declining Swedish scores and there’s no mention of immigration, you know the journalist isn’t doing his or her job properly – or is pursuing an ideological agenda. Or both."