blackcat, consistent with what you mention about your child's scores in the 99th percentile of 4th graders nearly matching the 50th percentile of 12th graders... in the
study's "Figure 2" I see scores of 4th graders performing at the 90th percentile depicted as nearly matching scores of 8th graders performing at the 50th percentile and 12th graders at the 25th percentile.
When reading the study's "Implication 2" (
Implication 2: The U.S. K-12 context, which is organized primarily around age-based grade levels, needs serious rethinking) I began to wonder whether a MAP score in particular subject area might be one criteria (among several) to consider when placing students in cluster groups by readiness and ability without regard to chronological age.
IMO, this does not mean that every academically advanced 4th grader (average age 10) should be in every class with every 8th grader (average age 14) and every 12th grader (average age 18) performing at the same level on MAP. Appropriate pacing, teaching strategies, and "fit" must also be considered. However in raising awareness of these extreme examples, the multi-age placement which is often currently accomplished through much effort and advocacy may be more readily considered
an option going forward.
