Statistical significance criteria of OECD/PISA are misleading because several sources of systematic bias and uncertainty are quantitatively more important than the standard errors communicated in the official reports. This is a summary of a detailed report that has appeared in German (Die...

This paper examines critically the presumption that, other things equal, private schooling offers higher quality education than public schooling. We apply multilevel regression on the 2009 PISA to estimate the differential effect of public and private schooling on student scores in Australia. We...

Despite being the poorest or second poorest participant, Vietnam performed much better than all other developing countries, and even ahead of wealthier countries such as the U.S. and the U.K., on the 2012 and 2015 PISA assessments. We provide a rigorous investigation of Vietnam's strong...