Scientology Logic 20
Logic 20 - A science may be considered to be a large body of aligned data which has similarity in application and which has been deduced or induced from basic postulates.
This may seem like "just a definition for science" but if it is applied to a field claiming to be a science then we can validate if the field really is a science.
Take Physics as an example. It is a large body of data which is aligned, e.g., what Einstein says doesn't disagree with what Newton says, they both apply and fit together. There is similarity in application - if scientist X applies theory A and scientists Y also applies theory A then they get the same results. We can also look at the basic principles of Physics, its basic postulates, and we can see how later data derives from them. So we can say that Physics is a science.
Now let's take a look at psychology and psychiatry. Well, first we have Wundt's theories, which contradict Adler, who disagreed with Freud. We see that Dr. Phil's latest ideas are different to Dr. Laura's whose are different to Dr. Kinsey. There is no alignment except perhaps around money. If psychiatrist A gives drug X to patient Q the patient becomes very docile. If psychiatrist A gives drug X to patient R the patient becomes psychotic and kills his wife. If psychiatrist A gives drug X to patient S the patient commits suicide. There is no similarity in application. When we look for basic postulates in these subjects we don't really find any. So it is clear that psychology and psychiatry are not sciences but pseudo-sciences - i.e., frauds.