The influence of the European Commission (EC) expert groups on policy coordination within the European Union has received a growing interest among researchers, who have assessed their role in policy-making processes, their participation patterns, their transparency, and their knowledge-generating process. This article interrogates the structural…

The huge technological improvement in data processing and the globalization have increased the demand for and the supply of indices that quantify the consequences of a policy. However, there are certain cases in which quantification may be misleading in the sense that it gives the impression of an accurate measurement while in reality it is not.…

This study introduces an approach for modeling multidimensional response data with construct-relevant group and domain factors. The item level parameter estimation process is extended to incorporate the refined effects of test dimension and group factors. Differences in item performances over groups are evaluated, distinguishing two levels of…