How are IGCSE world rankings given?

IGCSE world rankings are typically based on the performance of students in the International General Certificate of Secondary Education (IGCSE) exams, which are administered by various examination boards such as Cambridge Assessment International Education and EdExcel. Schools and candidates are evaluated based on the grades achieved in these exams, with higher average scores leading to better rankings. Rankings may also consider factors like the number of students taking the exams and the overall pass rates. However, there is no standardized global ranking system, and different organizations may publish their own rankings based on varying criteria.