Reply to 99th percentile SSAT

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[quote=Anonymous]The SSAT percentiles are based on test-takers in the last three years. Since test-takers are only students applying to selective private schools, they are not representative of the population as a whole. Very few applicants to SFS, NCS/StA, GDS etc. have 99th percentile test scores.

When you hear other parents brag about their scores, they are usually referring to the ERBs and the WPPSI. The ERBs provide percentile scores against both independent school and national norms. Almost all the local private school students will test in the top percentiles on the national norms. But, when you use the independent school norms to compare your child against other private school students, those 97th percentile scores become 60 or 70th percentile.

The WPPSI scores do not directly compare your DC's score against other actual test takers.  Instead, they convert the raw score to a percentile based on an older reference group of all children, not just private school applicants. Since the scoring for the WPPSI can vary widely based on the tester and the test itself is arguably biased in favor of children of higher-income better educated parents, more than 1% of our children get 99th. [/quote]

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