Psychology is the third part the ability to evidence rules and probative force of the rules set out.

第三部分是对心理学证据的证据能力规则和证明力规则进行阐述。

youdao

Humanistic psychology which was praised the third force in psychology has much deeply influenced the west contemporary education, and has become a very influential humanistic education thought.

被誉为心理学第三势力的人本主义心理学对当代西方教育产生了极为深刻的影响，形成了一股势力强大的人本主义教育思潮。

youdao

The founders, considered the founders of humanistic psychology " in fact called it "the third force".

人本主义心理学的创始人,称之为心理学上的“第三势力。

哈佛公开课 - 幸福课课程节选

And the third force, humanistic psychology came as a reaction to it.

第三势力，人本主义心理学作为对其的异议出现。

哈佛公开课 - 幸福课课程节选