I have a pilot study that I conducted, the results of which I'd like to present at the upcoming Conference X. I am also expanding on this study so that I not only have additional data, but will also have a broader focus, since my original one ended up being rather narrow.
I'd like to present my updated results (not yet available) at Conference Y several months after Conference X, but I certainly don't want to do so if it's unethical. Essentially, if I were to do both, I would be repeating some of what I present at Conference X (similar research objectives and methods, some of the same data), but I anticipate having further analyses to offer. Thoughts?