„At the end of lower secondary school (ninth grade), all students must take the Lower Secondary School Graduation Examination in Shanghai. The subjects tested include Chinese, math, English, physics, and chemistry. Physical education, lab operations, and moral ethics of students also factor into students’ final exam scores. The exam serves the dual purposes of selection into high schools and providing information on the overall performance of the basic education system. The total score on the exam determines the type of high school in which students will enroll: admission into highly selective comprehensive schools requires outstanding performance on the exam. […] Because of its primary purpose as a mechanism for selection into high school, the zhong kao has become increasingly high stakes for children in Shanghai. The test ultimately determines in which type of high school ninth-grade graduates can enroll.“
Weltbank (Hrsg.), „How Shanghai Does It“ (2016), S. 90f