One group was then instructed to reread the text a second time where the other group only read it once.

然后要求一组人再读一遍课文，而另一组人只读一遍。

Again, active recall, practicing, just writing down as much as they could remember from the text, improve their results significantly more than the students that have read the text four times.

同样，主动回忆，练习，尽可能多地写下课文，比读了四次课文的学生的成绩提高得要多得多。