Over the few years, computer based language testing has become prevailing worldwide. The number of institutions the use computers as the main means of delivery has increased dramatically. Many students face each day tests for well-known high-stakes decisions which imply the knowledge and ability to use technology to provide evidence of language…

This paper briefly discusses four measurement challenges of data science or "big data" in educational assessments that are enabled by technology: 1. Dealing with change over time via time-based data. 2. How a digital performance space's relationships interact with learner actions, communications and products. 3. How layers of…

The original data strategy on which PISA was based suggested that, after the completion of the first three assessments in 2000, 2003 and 2006, the cycle would repeat itself with three-yearly assessments in the areas of reading, mathematics and science. However, in light of newly emerging policy priorities and the experience gained with PISA so…