I have! But the lack of a testable procedure tells me that's not a question worth asking. Look, if "qualia" can tell me something practical about the behavior of AI, I am here for it. Lay it on me, man. Let's see some of that "science" being promised.
It can't, because it's a meaningless word. It's not "discrediting" an idea to point out that (by its own admission) it's unfalsifiable.
"Qualia" is not totally meaningless - it means the inner experience of something, and can bring up the real question say of is my inner experience of the colour green the same as your experience of the colour red? Probably not but hard to tell with current tech. I asked Google if it has qualia and got "No, as an AI, Google Search does not have qualia." So Google search seemed to know what it means.