<p>I think the Peer Assessment has limitations, which have been well discussed here, but I don't think it's as bad as you make out. Your main complaints seem to be:</p>
<p>(1) That it's very mysterious
(2) That it doesn't measure what matters
(3) That it's weighted too heavily in USNews' calculations
(4) That (some) people buy into it too much </p>
<p>I agree with some of this, but I don't think PA (or, should I say, PA exclusively) should warrant this level of concern.</p>
<p>As for #1, several people have detailed the nature of the question, the respondents, the response scale, and the way USNews reports it. While we can't crack open the brains of people who answered, that's the nature of survey research. Even with a better-written question, we'd still have to live with not knowing what the respondents were thinking. </p>
<p>As for #2, it may not measure things we'd like to see measured, but it's pretty clear in what it does measure: peer reputation. Not student learning or satisfaction, not faculty quality, productivity, or pedagogy; not employer or corporate-world reputation, not research excellence, not parental opinions. It's what their "peers" (as defined by USNews) think in general about a college's academic programs. USNews isn't making any claims to the contrary. </p>
<p>As for #3). Maybe it is. One thing USNews does is provide this measure in its own column, divulging the value, enabling people to evaluate PA separately (or not at all) if they so wish. It's time-consuming, but one should only need to do this for the handful of schools one is seriously considering. </p>
<p>As for #4). True, some people put a lot of stock in this measure, and perhaps too much. From where I sit, there are lots of things to hate about how some people assess colleges. What can anyone do? I think it's important to remember that USNews is one tool among many. What's positive is that is isn't the last word on college choice. Many people (including institutions themselves, including those you've speculated are 'afraid' to share data with USNews, and those you claim are 'working to perpetuate the traditional ranking') devote considerable resources to make other college-choice information available and encourage students to use it. </p>
<p>USNews is what it is, it's useful to a point; some people will value it more than others. There's lots that you don't like about PA, but there exist people who have similar and valid concerns about some of the other measures USNews includes, or the weight USNews puts on them, or the way people fawn over them. I guess ultimately I don't wholly accept that the USNews ranking would be that much better if they got rid of PA (or changed it, or weighted it differently). There would remain a lot about USNews' ranking that troubles me. That probably fuels my antipathy in trying to come up with a weighting system or a measurement that would be "better." </p>
<p>And yes, in the interest of full disclosure, I do work at an institition which generally does pretty well in the rankings, and in fact benefits a good bit from the PA. When PA was the only measure, my institution ranked very highly. Yet I still don't care for the influence USNews seems to have on some people.</p>