英语语法分析

Still, it can't be ruled out that some unmeasured factor played a role.

一些起作用的不可测因素仍不可去除。

Fourth, residual confounding by SES or other unmeasured factors might be a concern.

第四，应该注意到由于SES或者其它不确定的因素造成的剩余混淆。

This raises the possibility that, as yet, unmeasured psychological factors need to be considered.

这提高了尚未测量的心理因素需要考虑的可能性。