I finished Units 3 and 4 last year and I'm still confused about how my study scores translate to an ATAR. I got a 38 in English, 35 in Methods, 31 in Chemistry, and 29 in Physics. My school's career advisor gave me an estimated ATAR around 87 but I can't replicate her calculation and I want to understand it myself before I make decisions about course applications.
From what I can tell, the scaling process adjusts raw study scores based on how the broader cohort performs in each subject. Methods apparently scales up significantly, which makes sense given the difficulty. But I can't figure out how much scaling actually applies to my scores or where to find reliable historical scaling data.
The aggregate calculation - taking your best English score plus three other scaled scores - seems straightforward, but I've seen different versions of the formula depending on which source I read. VTAC's official documentation is helpful but doesn't give you the actual scaling tables from previous years.
Does anyone have a reliable ATAR estimator they've used? I've tried a couple of online ones but they give me different results ranging from 85 to 90 and I don't know which one to trust.
The ATAR Notes calculator is generally considered the most accurate one around. It uses historical scaling data and tends to be within 1-2 ATAR points of the real result in most cases I've seen.
Your 38 in English is your anchor - it's the one score that goes in without substitution. With those other results you're probably in the 87-90 range, so your advisor's estimate sounds right to me.
Physics typically scales up slightly too, but less dramatically than Methods. Chemistry tends to be roughly neutral or slightly positive depending on cohort performance that particular year.
Methods scales up significantly - usually adds 6-9 points depending on the year. Your 35 in Methods is probably worth closer to 42-43 after scaling, which makes a real difference in your aggregate.
Wait, you're in the same boat as me — I'm still in the middle of Units 3&4 and the ATAR scaling thing is genuinely doing my head in. From what I've picked up, the raw study scores get scaled up or down depending on how competitive the subject is that year, so a 35 in Methods might be worth more in ATAR points than a 38 in something less competitive. That's why you can't just add them up yourself without knowing the scaling factors, which only get published after results come out.
The bit I keep getting stuck on is the aggregate — like, how exactly does VCE decide which five subjects count toward it? I know English (or an English equivalent) is compulsory and then it's your next best four scaled scores, but does it always pick the highest four or is there some edge case where a lower raw score in a heavily scaled subject beats a higher raw score in an easier one? That's the part my teacher glossed over and I genuinely can't find a clear answer.
Also curious whether your school's estimate accounted for any bonus points for languages or something. 87 seems plausible for those scores but the variance between schools' estimates can be pretty wild from what I've heard.