Dowsing, pendulum, and even muscle testing for disease and allergens are all three using the same 'spirit' paranormal forces. Just because someone came up with the theory of ideomotor effect and proved their theory with tests designed to prove their theory, that dousing or that Ouija Board boards are not paranormal activity-- but idiomotor effect the theory does not really test what is truly happening or not happening at the time of the test in the spirit realm. It is a faulty test. It is certainly not the last word on the subject. If you have never experienced paranormal activity, or if you do not believe it is possible then it is going to take a lot to open your eyes. If a spirit is not wanting to show off to the tester, then the spirit may not perform to prove a test. The spirit may not want the publicity it may in fact want to bring about loss of respect fir the dowser. I have personally seen a pendulum in action and the most bizarre account I have is that of a sterling necklace with a light weight sterling cross sliding freely on the chain.. (Imagine a clock face, where are the numbers placed on the face of it?) When the necklace was held out-- dangling from the forefinger-- the cross, due to gravity, naturally hung down to 6pm (on the imaginary clock face) because of gravity the cross might jiggle and move a bit due to slight arm movements but it would still be hanging at 6pm. That is the only option in our natural world. But when something in the spiritual realm invisibly interacts with our world all kinds of strange things can happen at the whim of the spirit entity and that is something that the tests proving ideomotor can not disprove or prove because the test is not designed to test whimsical movements of a spirit entity. Back to the necklace, several questions were asked of the pendulum. It gave many answers both yes and no. always giving answers. Then while the person stumbled over their words to ask the 15th question, the pendulum lifted up just as if a person picked it up in anticipation of giving the final answer and rested mid air at 6:40.Until the question was finished. 6:40 IS IMPOSSIBLE in the natural realm. It was as if an unseeen (spirit) hand was waiting holding the pendulum. Ideomotor couldn't explain that away or what happened next. It was as if there were two entities both fighting to take control of the cross. It was back and forth between 6:49 and 5:10 as the spirits fought over which one of them would be allowed to answer. So the truth is that YOU can choose to ignore the paranormal but the REAL scientific evidence you are staking your claim on is indeed B-O-L-O-G-N-A.