So I managed to talk to the nurse recruiter today, and during our conversation, she mentioned that whether the application status says "We have contacted you for an interview" or "Assessment interview completed" is a way for her to differentiate between groups of people...she didn't specify what the groups were. I highly suspect that if your status says "Assessment interview completed", it means that you passed the TalntPlus interview and will be receiving an in-person interview. Good luck!