Hi, I’m currently taking the IB diploma. My predicted score is 39. If I end up with a score below 39, will universities revoke their offers?
@MYOS1634
In the UK, I believe, your acceptance is contingent upon how you do on the IB exams.
In the US, I don’t believe they look at predicted scores. They look at your grades for the classes.
Once you are accepted, they use your IB scores to see if you get credit for classes.
Some colleges DO look at the IB predicted scores and a 39 is great. I cannot image any school revoking acceptance for a 39 but I’m not sure about the tippy-top IVY schools, certainly not the majority of the top LAC schools or universities.
International students are probably held to a different standard than US IB students, the IB kids here are often not even required to get a conditional score as they are proven already before admission with APs and standardised testing. Check with your target school, look at the language of the offer.
International students’ “grades” are their IB predicted scores. A 39 is excellent. You probably wouldn’t be rescinded unless you hit 30 instead of 39.
I’m guessing my predicted is a 39 too because of the “cautious” thing teachers have here in india. They’ll predict you a grade lower than what you could get in your exams
At the last IB awards night I went to the kid that got a 39 was practically given a sainthood on the spot. Worldwide average is 30, I think? Above 39 puts you in the top 8-10%.
A 39 puts you in the top 2.5% * internationally*. 
And again, it depends on your context and on your school. For example, at Sevenoaks in Kent in the UK, the mean score for their 213 students was 39.1. 22 Sevenoaks kids got 44 and 9 got 45. The top schools know what is “normal” for your school, and are able to judge how much your score is above or below what would be considered a normal range for your school. So if your school averages 30 points on the IB, and you get a 39, then you must be doing something particularly exceptional, as your score could not be attributed to being particularly well prepared.
So at schools like Sevenoaks, or the Cheltenham Ladies College in Gloucestershire (mean of 39.2) or Haileybury in Hertfordshire (with 39) or North London Collegiate (which only had 24 students but managed an average of 40), or King’s College School in Wimbledon (175 candidates, average of 40.1, with 28 kids getting 44 or above), a 39 is still excellent, but it will be interpreted in context.