I think what we are really should be looking for is not ways to create truth, but rather ways to have truth revealed. Epistemolgy is the the study of how we know what we know, how truths are revealed to us. Anyway, I think the same is true when it comes to truth, there's more than one way to get to it. In the little bit that I have studied epistemology, I have learned that there are many ways to derrive a truth. Everything from faith to reasoning.
Scientific evidence is inductive in nature.
That doesn't mean that it is good or bad. Once we realize that it is inductive, we can recognize that inherent to inductive think are some positives and drawbacks. The other type of reasoning is deductive. This is what is used in chiropractic philosophy. With deduction, we start with a major premise, a priori statement, and then logically deduce conclusions from that premise.