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Direct linkBing Jia; Zhemin Zhu – SAGE Open, 2025
Learning trajectories refer to the progression of students' knowledge acquisition and skill development within a specific domain. By identifying students' proficiency levels across specific knowledge points or attributes, cognitive diagnostic models (CDMs) allow researchers to systematically describe and analyze learning trajectories. This study…
Descriptors: Learning Trajectories, Grade 8, Middle School Mathematics, Achievement Tests
