倾向分数不一定都是不可靠的！
同样，当将队列划分成倾向分数五分数时，研究并未发现两组间生存率的差异。
Similarly, when the cohort was divided into propensity score quintiles, we did not find a difference in survival between the two groups.
一般来说，学生会根据自己的分数倾向选择排名高的学校而排名较低的大学的排名就会越来越低。
Generally, students tend to choose the high-ranking colleges according to their score and the low-ranking college will be in a lower and lower ranking.
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