The diagnosis of cognitive development in senior secondary school students is a crucial component of modern education. It provides insights into students’ intellectual abilities, problem-solving skills, critical thinking, and overall learning potential. This study examines the scientific foundations, methods, and tools used to evaluate cognitive development, emphasizing evidence-based and standardized approaches. The analysis highlights both traditional and contemporary diagnostic techniques, their reliability and validity, and their role in informing instructional strategies. Understanding cognitive development allows educators to design targeted interventions, promote higher-order thinking, and support holistic student growth.

Cognitive development, senior secondary school, student assessment, diagnostic evaluation, critical thinking, problem-solving, educational measurement, formative assessment, intellectual abilities, learning potential

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