Is the Pelvic Joint Moving Too Much or Too Little?

I don't know of any tests that are either specific enough accurate enough or reliable enough to tell us if the pelvic joint is impaired in its functional ability. So I only tend to use tests that tell me if the sij is sensitive or painful when it's stressed or compressed or loaded. And then I suppose that leads into that next part which is well then how do we assess somebody who presents with what people have been they've often been told or they've looked up and seen that they have an sij problem?