There is strong controversy over the application and effects of the Linguistic Immersion Policy in Catalonia, a policy that established that the Catalan language should constitute the only vehicular language during the different levels of compulsory schooling. While some of the effects of this policy have been determined, the evidence on other…

The stability of educational test results from the Programme for International Student Assessment (PISA) over 15 years was examined, and the influence of demographics and social capital was assessed, as was the impact of educational reforms. The test results were remarkably stable, with correlations up to 0.99 for country-level results over 2…

This article reports on the South African results of a study to identify and explain relationships between some major factors associated with successful reading at Grade 5. With 11 official languages, educational policy in South Africa advocates an additive bilingualism model, and students in Grades 1 to 3 are taught in their mother tongue.…