<p>@Sue22 Your assumption regarding graduation rates is flawed. You assume that the college has the ability to increase grad rates by lowering the graduation GPA requirement. Many students fail to graduate not because they fail to make the grade but for other reasons such as financial inability to pay for school, loss of interest in obtaining a degree, job opportunity that does not require degree, as well as a host of other reasons that is unrelated to maintaining the grades. </p>
<p>The many other aspects of the US News Reports weighting methodology the college has little control over or it will cost a great deal more to improve. For instance lowering class size means more professors and greater cost. Colleges are aware of the cost/benefit analysis method to reach decisions.</p>
<p>The cheapest way to increase rankings is by increasing SAT scores by taking the test optional route by some estimates it results in SAT averages of 150 points higher than if a school required all students to report their SAT.</p>
<p>I do acknowledge @International95 that US News Reports states that some discount is given to test optional schools but since that value is not made clear, it is my guess that the test optional colleges have already determined that the discount is not as great as the SAT increase for a particular school. </p>
<p>As I posted previously, all test optional schools can require SAT scores for admission and then it is free to give whatever weight they wish and state so in its admission information. One reason colleges do not go this route is because it would lower its selectivity index by discouraging low test scoring students from applying. </p>
<p>Since you point out that 10.25% of ranking weight is directly related SAT results. The cost of manipulating the SAT result is little to nothing so you can see why colleges go that route. It is best bang for the bucks. </p>