The effect was especially pronounced for lower performing students, for whom exposure to struggling stories led to significantly better science-class performance than low-performing students who read achievement stories.
这个句中的for whom是引导定语从句吗?我理解whom是exposure的定语,句子意思也可以理解。就是这个用法感觉不是很熟悉。
请老师们指点,谢谢!