extending the issue of the two-parent versus one-parent family is, "To what extent are these notions validated " cross-culturally?"

将双亲和单亲家庭的问题扩展了一下，“这些概念究竟在多大程度上,会因跨文化差异而有所变化“

耶鲁公开课 - 心理学导论课程节选

To what extent are all of us composed of multiple people, and to what extent are we a single unified person over time?

我们究竟在多大程度上,是由多种人格组成的,又在多大程度上是一直由单一人格组成的

耶鲁公开课 - 心理学导论课程节选