In their study, Gross and Feigenbaum looked at two groups.

在他们的研究中，格罗斯和费根鲍姆观察了两组。

Gross and Feigenbaum weren't just looking at big, abstract data sets, like percentage of employed women.

格罗斯和费根鲍姆不仅仅关注大型、抽象的数据集，例如就业女性的百分比。

What Gross and Feigenbaum did with their telephone-operator study is show this process in concrete detail, with names and dates.

格罗斯和费根鲍姆在电话接线员研究中所做的就是用姓名和日期来具体展示这一过程。