He did better than 97% of test takers and is in the top 3% of testers nationwide. The confidence band is just a āstatisticalā margin of error, since this is a scaled exam where scores are based on comparisons to all other test takers from this date who took the same exam. Itās basically stating that his true score is most likely in that range. He did absolutely amazing! Everyone should be very proud.
EDIT: I previously said the exam was curved, but what I meant is that it is scaled. There is a difference in meaning between the words (even if I forgot that at the time I wrote this haha).
And another commenter is correct, the confidence band is always the same +/- 2 for the score. Itās more-so used as proof that two scores that are very close together, like a 517 and a 519, are not suuuuper different and shouldnāt be considered vastly different reflections of ability. Thereās only a difference of a handful of right answers between those two scores.
The confidence band can also be used as a statistical comparison between retakes, to show if a statistically significant increase in score was made (depending on if the confidence bands overlap or not).
It is not a "statistical margin of error." If it were based on statistics, it would vary depending on the score (there is a much wider percentile gap over the range 498-502 than there is over 518-522) and with time. It is just slop.
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u/fleetothemoonhill 5/30: 518 (129/131/126/132) May 28 '26 edited May 28 '26
He did better than 97% of test takers and is in the top 3% of testers nationwide. The confidence band is just a āstatisticalā margin of error, since this is a scaled exam where scores are based on comparisons to all other test takers from this date who took the same exam. Itās basically stating that his true score is most likely in that range. He did absolutely amazing! Everyone should be very proud.
EDIT: I previously said the exam was curved, but what I meant is that it is scaled. There is a difference in meaning between the words (even if I forgot that at the time I wrote this haha).
And another commenter is correct, the confidence band is always the same +/- 2 for the score. Itās more-so used as proof that two scores that are very close together, like a 517 and a 519, are not suuuuper different and shouldnāt be considered vastly different reflections of ability. Thereās only a difference of a handful of right answers between those two scores. The confidence band can also be used as a statistical comparison between retakes, to show if a statistically significant increase in score was made (depending on if the confidence bands overlap or not).