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Acikgul, Kubra – International Journal of Assessment Tools in Education, 2021
The main aim of this study is to develop a useful, valid, and reliable two-tier proportional reasoning skill test for middle school 7th and 8th-grade students. The research was carried out using the sequential explanatory mixed method. The study group of this research comprised of 391 (n[subscript 7th-grade]=223, n[subscript 8th-grade]=168)…
Descriptors: Cognitive Tests, Logical Thinking, Test Construction, Test Validity