I got the following blurb from the CTY SCAT website":
[/quote]What is a percentile?
PERCENTILE: The percentile score allows you to see the percentage of students who scored lower than your child on the SCAT. It is extremely important for you to understand that your child was not compared to students in his/her same grade. We compare your child's raw score to scores obtained by an older group of students. If your child scored in the 50th percentile, your child’s performance on the test was better than 50 percent of the children two (2nd-4th) or three (5th-6th) grades above your child who took the test. EXAMPLE: "63 (compared to Grade 4)" means your 2nd grade child scored better than 63% of a normative population of students in grade 4. [quote]
I was under the impression that SCAT is used only for gifted testing. Given that how do they determine the normative population?