I am pretty sure that even for year 10 it is group interviews.
Basically they look at if u can work in a team, voice your opinion, agree/disagree with others in a well-articulated way and be confident. I think its more about how you say things rather than what you say.
They also do like a puzzle, they pay attention to how much you contribute, body language and just general stuff like that.
Last part is a one-on-one interview they'll ask you questions and just be yourself. Answer to the best of your possibility and expand on your answers if you can. (eg. Q: What are some of your qualities? (this is just an example question), A: I am a respectful individual, I believe...etc etc)
I think thats pretty much it.