Getting a lot of questions about norm groups.
Basically don’t worry about them. You are worrying about the wrong things if this, percentiles and raw scores are what you are fixating on.
To explain:
raw score - how many questions you get right (eg 18 out of 20)
norm group: who you are being benchmarked against. This could be your fellow applicants, it could be last year’s applicants, it could be a 1000s of people who have applied to a similar job to you across different companies.
It’s never as crude as this, but to explain. You do a WG assessment and get 5 out of 10 as a raw score. You are benchmarked against a norm group of toddlers, you’ll probably get a very high percentile. You are benchmarked against high performing qualified lawyers, and you will probably get a low percentile, even though the assessment is the same.
percentile: this is your ranking if you lined up everyone in the norm group in performance order. Those with the 99th percentile will be the strongest performers, those with the 1st percentile are the bottom performing against the norm group.
You could get 8 out of 10 as a raw score and still be lower than the 10th percentile. You could get 2 out of 10 and still be above the 90th percentile.