A new vision of science learning described in the "Next Generation Science Standards"--particularly the science and engineering practices and their integration with content--pose significant challenges for large-scale assessment. This article explores what might be learned from advances in large-scale science assessment and…

Many articles and reports have reviewed, researched, and commented on international assessments from the perspective of exploring what is relevant for the United States' education systems. Researchers make claims about whether the top-performing systems have transferable practices or policies that could be applied to the United States. However,…

The discussion here covers five articles that are linked in the sense that they all treat population invariance. This discussion of population invariance is a somewhat broader treatment of the subject than simply a discussion of these five articles. In particular, occasional reference is made to publications other than those in this issue. The…

This article discusses the five studies included in this issue. Each article addressed the same topic, population invariance of equating. They all used data from major standardized testing programs, and they all used essentially the same statistics to evaluate their results, namely, the root mean square difference and root expected mean square…

The first and second International Association for the Evaluation of Educational Achievement Science Studies examined and compared science achievement in 19 and 26 countries, respectively. This paper considered 10 technical issues that arose in these 2 studies of science education and achievement. The issues discussed were the: (1) need for the…