effectiveness
n. 有效性,效力
例句
But on the general effectiveness of the social cure, Rosenberg is less persuasive.
但是在社会疗法的普遍有效性的问题上,罗森博格反倒没有那么令人信服。
There's solid evidence that there are huge differences in the effectiveness of teachers.
有确凿的证据表明,教师的工作效率存在巨大差异。
As a general rule, it's important to differentiate between effectiveness and absolute time commitments.
一般说来,区别效率和绝对的时间投入很重要。