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Chin, Huan; Chew, Cheng Meng; Yew, Wun Thiam; Musa, Muzirah – Participatory Educational Research, 2022
"Parallel and Perpendicular Lines" is an important topic that serves as a basis for the learning of a more advanced geometric concept in later years. Yet, this topic is hard to master by the students. To pinpoint students' weaknesses in this topic, this study sought to develop a cognitive diagnostic assessment (CDA) to assess students'…
Descriptors: Geometric Concepts, Cognitive Tests, Diagnostic Tests, Foreign Countries