Sim.
Na verdade, temos um exemplo disso em Revenge of the Sith. Yoda ficou bastante surpreso ao descobrir que Qui-Gon Jinn havia descoberto um método de preservar sua consciência após a morte. Sua técnica aparentemente não era refinada (Qui-Gon só era capaz de se comunicar verbalmente), mas ele era capaz de ensiná-la a Yoda e Obi-Wan, que evidentemente eram capazes de resolver os problemas e alcançar uma maior grau de coerência.
O script original tem um pouco mais de detalhes.
YODA: (continuing) Master Kenobi, wait a moment. In your solitude on Tatooine, training I have for you.
OBI-WAN: Training??
YODA: An old friend has learned the path to immortality.
OBI-WAN: Who?
YODA: One who has returned from the netherworld of the Force to train me . . . your old Master, Qui-Gon Jinn.
OBI-WAN: Qui-Gon? But, how could he accomplish this?
YODA: The secret of the Ancient Order of the Whills, he studied. How to commune with him. I will teach you.
OBI-WAN: I will be able to talk with him?
YODA: How to join the Force, he will train you. Your consciousness you will retain, when one with the Force. Even your physical self, perhaps.