Register for the webinar where David Ebbs, our Senior Researcher, and cApStAn founder Steve Dept, will talk about the development, translation, adaptation and verification cycle of a TIMSS grade 8 science item.
Join us hosting a joint IEA/AIR/University of Missouri course on ‘Multilevel Modeling with International Large-Scale Assessment Databases Using the HLM Software Program’ on 15 April 2021.
