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[quote=Anonymous][quote=Anonymous]Does anyone know approximately how many questions you can get wrong on the IOWA and still score high enough for algebra?[/quote]

As many as 10 total (or 2.5 per section), see [url=https://itp.education.uiowa.edu/iara/documents/IARAInterpretationGuide.pdf]pg 10/11[/url] which lists the 91% percentile at 50/60. Parent wisdom, however, is to not push Algebra unless your child scores a near perfect score: I'd say 58 or more (our 5th grader scored a 60/60, so the test for a mathematically advanced child who has been doing math regularly and competitively during their ES years is a breeze).

Interestingly, though, nobody really knows what the currently administered version of the IAAT is calibrated by and using which statistical methods. This was previously discussed on this forum, and no one has been able to contribute authoritative information. What we know is that it's a

- a nationally normed test, but the norms are probably not recent
- probably using statistical methods such fitting a multivariate model to a normal curve
- proprietary

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