1. Remember that the IAS is first intended to be a jumping-off point for thoughtful, collaborative discussion and decision-making by the team of family and school, not necessarily to be a robust psychometric measure. In any given large institution, it is probably more important that the category names are used consistently system-wide, than that their interpretation matches an idealized IAS.
2. Given that the sections describe distinct academic skills, the Total Achievement Composite, which blurs those distinctions, is unlikely to be the optimal measure.
