<p>I just graduated in the top 10% from a Texas high school and I think that the rule is pretty bogus. From what I understand, it’s designed to prevent discrimination and reward high achievers, but even taken as a percentage this rule is applied unfairly. The example you provided about disparities in competition hits the nail on the head and is the main reason that I oppose it. As unreliable as they may be, standardized test scores remain the easiest, fairest way to evaluate the performance of students from a variety of backgrounds.</p>