If you're beginning to Flip your Classroom, or if you're interested this is a good place to start. Well known resources from Aaron Sams and Jackie Gerstein to name a few.
Not so much on research to the specific Flipped Model and video instruction. The research cited is broader, and rightly so. I don't think in a narrow flip is. But it would be nice to see more research on flip-mastery. That seems to be the predominant model.
Via Jelmer Evers