could be large depending on how far people are from the standard deviation. Like what im thinking (but obv not too sure) is that the trial will be worth 30-40-50% and be out of 100 right so u will have people who get low 90s (at the top) and even some tail enders getting 40-50 maybe even lower (porlly lower) and thus this will cause a huge standard deviastion and spread in data. This on top of a number of students grinding for ucat and maybe lats (mostly ucat tho as ucat is so soon) will take time away from people who would have normally been performing really well in terms of their atar and i assume gives more chance for others to get a higher rank
