How to pronounce “yerk” in English

which is the Yerkes-Dodson law.

But there's one called this Yerkes-Dodson curve, where people say you need some optimal level of anxiety to perform well, and too little or too much

You know, there is-- it's been called the inverted U-curve, the Yerkes-Dodson law.

and their rights." And yet, in the same decade, in "If I Ran the Zoo," Gerald McGrew proposes going to the African island of Yerka