UCSB Skype Interview for Comp Lit - What Should I Expect?

[Stella_***]

Hi! So I'm an applicant to Ph.D. programs in comparative literature and just got a short email from the DGS at UC Santa Barbara. It basically says that the admissions committee think I'm a good fit for the program and asked if I'd be able to talk in the next few days. Is that an interview request? I was told by my professors that most schools don't do interviews for my program, so I am very confused. She said I could do either a phone call or Skype. I'm assuming that means I'll only be talking with one person? Anyways, any advice would be really really helpful! THANK YOU SOOOOOO MUCH!