I don't know. As one of the founders of modern psychology I don't even know what peer review standards existed in his time. Of course, the term that the female is "chaos" per Dr. Jordan is based on its usage in religious myths not as a psychological term. Dr. Jordan didn't call females "chaos" of himself. He just noted that religions did so.Ah, Freud. Did he provide peer reviewed scientific evidence that the female is "chaos" ?