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The example is hypothetical. If you have 10 students. A test is super easy or super difficult. 5 kids got perfect score or 0 score. There could be some missing percentile scores if there is no specific tie breaker rule. Just extreme cases.
The same logic applies to HSAT. If there are many tied scores in reading or math some of percentile scores are not available.
thank you for checking. 349 reading score is the highest score I’ve ever seen in this thread. The lowest math 99 percentile score is 317. It could be lower than 317 but I haven’t seen it. The highest math score in this thread is 338. If reading max score is 350, it is more likely that math max score is 350. but no one knows because cps doesn’t release any information on min/max HSAT score
I haven’t seen any reading scores above 340. Is your daughter’s reading score 349? What about her math score?
The 900 score is based on percentile rankings (99th percentile in both sections). Only 1% of students receive a perfect 900. Test difficulty doesn’t matter much unless the test is extremely easy or extremely difficult.
For example, the HSAT is exceptionally easy—almost 50% of CPS students achieve perfect scores in both reading and math (meaning they answer every question correctly, not just scoring in the 99th percentile). These students who get everything correct still only receive 99th percentile rankings in both sections. However, the next group of students—even those who miss just one question—don’t receive 98th percentile rankings; instead, they drop to the 50th percentile for reading or math due to the large number of perfect scores.
In summary, the number of students who achieve 99th percentile each year depends on the total number of CPS students taking the HSAT. If 20,000 students take the HSAT, approximately 200 students (1%) will receive a 900.For reading, I don’t see many scaled scores for 99 percentile.
only two
332
322Any one else who has 99% but different scaled scores other than these two?
Thanks for sharing your child’s scaled scores “I went back and looked and our child had 332 reading 327 math then and 99/99 and did receive 1st choice, Payton.”
Someone asked this question before, but no one knows what the maximum and minimum scores are for the 99th percentile in math. Last year, I saw someone claim that 350 was the maximum. Is that true?
This year, I’ve seen students with 99th percentile math scores who received the following scaled scores:338
334
327
324
317Based on this data, it appears that 317 is the lowest score for the 99th percentile in math so far. Has anyone seen scores higher than 338 or lower than 317 that still fall within the 99th percentile?
