run across the thread. I was in the same boat, shifting from journalism to international relations. I agree that with a Quan score below 150, your chance for top-tier schools is slim. Strive for 160+ if you can. Try to get some international experience if you can. Most importantly, leverage the personal statement to tie everything up, explain why you decide to change gear and show the unique experience/ characters of being in the field of journalism (i.e. open up your statement with a story-telling tactic related to your career motivation).