Psychology had to be a science studying behaviour and mind of living beings.
There is a separate part of it studying specifically human behaviour and mind.
However, there is absolutely no any definition of how exactly human behaviour and mind different from non-human ones and how to separate one from another.
So, psychology can't even give an answer to the very basic question that obviously should precede any further study - is some person mind and behaviour human or non-human?
Psychology could have been very useful instrument to detect those with non-human behaviour and mind among us with scientific precision, but it was purposedly turned into pseudoscience bullshit to not even allow that question.
I haven't written it up yet, but I stumbled into the time just before the turn of the 20th Century where the same old Spook Families invented and thus took control of both psychology and (surprisingly or maybe not) parapsychology. I think of them as the "Boston Psy Crew":
Morton Henry Prince
G. Stanley Hall
Society for Psychical Research
William James
Charles Sanders Peirce
Benjamin Peirce
Frederick O. Prince
Frederick H. Prince
Rev. Dr. Walter Franklin Prince
Joseph Banks Rhine
Dr. James Jackson Putnam
That's just what I have in my notes. So if anyone is wondering why both psychology and parapsychology are dumb and wrong and never went anywhere, now you have your answer as to why. "They" saw the advantage long, long ago and took appropriate action.