The Bell and Pad Method" and was used during the 1930s. Actually it wasn't a very ethical type of method, but this is always the key aspect in experiments. The aim of this method was to help children to overcome bed-wetting. Meinhard von Pfaundler invented this method, to at the time alert nursing staff when a child had wet the bed, it was latter put into full use by two groups of psychologists, Orval Mowrer, Willie Mae Mowrer, John Morgan and Frances Witmer. The way this device worked best by little children, who were not able to wake up when their bladder was full, so they pee in their bed, instead of going to the toilet. So the solution was aimed to make them more aware of their bladder while sleeping. The experts constructed a pad with