2) The curve is wrong
Hypothetically, if you distributed the scores of all students sitting for the SAT on a curve, with or without accommodation, it should approximate the normal curve (a.k.a. the “bell-curve”). When the College Board plotted the 2005 results of students taking the test with accommodations, the results yielded not a bell-curve but rather a bi-modal distribution (meaning the distribution was top and bottom heavy with a disproportionate number of low scoring and high scoring students rather than a tendency toward the mean). This greatly alarmed the College Board that the population of students receiving accommodation did not mirror the rest of the population.
Except that the curve isn't wrong at all.
A bimodal distribution is *exactly* what you would expect of this population. The high scoring students are the ones who know the material and just need some extra time to demonstrate that, and the low scoring ones are the ones who don't know the material or have some other issue that extra time isn't helping.
