Supporting Lagging Students and Learning for All

This publication introduces the Diagnose-and-Supplement System of Basic Skills (DASOBS), an online–offline system for academically low-achievement students from grades 1 to 10 in the Republic of Korea. It outlines the purpose, features, and history of DASOBS and describes the pipeline, content, and operations of the system. DASOBS, which involves form-based adaptive testing, is administered four t...