Disbelieving in some types of paranormal phenomena (that's the correct plural, by the way, Agency Lady) despite routinely encountering or believing in other types is called 'Arbitrary Skepticism'. It's a TV Trope. I wonder how Scully would have tried to explain the levitation and paper-swirling scenes if she'd been in the room for them. Maybe a wire-fighting team and a small but powerful fan hidden in the floor or ceiling?