Qui-Gon refers to Dooku as "master," indicating he is still Dooku's apprentice. However, he lacks the single hair braid that signifies a Padawan.
Padawan braids are encouraged by species that grow hair, but are not required by any official rules. Additionally, it is common for new Jedi knights to still refer to their former teacher as "master," as demonstrated by Anakin in Revenge of the Sith.
Padawan braids are encouraged by species that grow hair, but are not required by any official rules. Additionally, it is common for new Jedi knights to still refer to their former teacher as "master," as demonstrated by Anakin in Revenge of the Sith.