The purpose of the International Civic and Citizenship Education Study (ICCS) is to investigate the changing ways in which young people are prepared to undertake their roles as citizens across a wide range of countries. This assessment framework provides a conceptual underpinning for the international instrumentation for ICCS 2022. It needs to…

This document provides an overview of the National Assessment of Educational Progress (NAEP). NAEP is the largest nationally representative and continuing assessment of what students in the United States know and can do in various subjects. NAEP serves a different role than state assessments. States have their own unique assessments which are…

The testlet, a bundle of test items, alleviates some problems associated with computerized adaptive testing: context effects, lack of robustness, and item difficulty ordering. While testlets may be linear or hierarchical, the most useful ones are four-level hierarchical units, containing 15 items and partitioning examinees into 16 classes. (GDC)