Reply to In-Pool Results Thread 2024

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[quote=Anonymous][quote=Anonymous]I find it really interesting how DC's CogAT scores varied this year (5th grade, new district) vs. the first time (2nd grade, FCPS). Verbal subscore dropped from low 150s to low 130s (~20 points). Quant and Non-Verbal subscores increased from mid 130s to mid 140s (~10 points each). Composite nearly the same.

I haven't really observed any particular growth in their age-normed Quant/Non-Verbal skills nor decline in their age-normed Verbal skills. So I'm guessing this is less a function of their aptitudes in these areas meaningfully shifting in past 3 years, and more likely just the random variation for a given student if you take the one test one day/week/month vs. another. Could be a bit of both, but just knowing DC as well as I do it seems more the latter.

FWIW they also took NNAT and WISC in 2021 (WISC as a backup in case we needed to appeal). NNAT tracked closer to 2021 CogAT on Non-Verbal... WISC Visual-Spatial tracked closer to 2024 CogAT on Non-Verbal. WISC Verbal tracked closed to 2024 CogAT Verbal.

I guess my point is it just seems like these scores all have wider-than-I-expected margins-of-error for a given student (10-to-20 point swings). It seems therefore wise that they don't use it as the sole decision criteria and take things like teacher observations and actual work samples into account.[/quote]

There are a few things to unpack with this.  First is that the CogAT given to 2nd graders and under is fundamentally different from that given to 3rd grade and older.  The second grade one is almost entirely pictures with no time limit.  The teacher has to read each question to the kids, meaning some might get bored if the process takes too long.  The older kid version is filled with timed tests that may be difficult to finish in the allotted time.  The verbal section will use words and not pictures.  The Quantitative uses more numbers and fewer pictures of quantity.

Also, testing itself isn't that accurate.  It's a long read, but you might want to plow through this study.  https://files.eric.ed.gov/fulltext/EJ746292.pdf
One of the conclusions is that on ability tests, only 40% of the kids who scored in the 97th percentile or higher in 3rd grade still scored in the 97th percentile or higher in 4th.  [/quote]

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