<p>Clearly the college admissions process is not entirely random. It is not random among students who have essentially identical qualifications in terms of standardized test scores and GPAs.</p>
<p>However, I think that there is an element of randomness in the process, in that I do not believe that the outcome is perfectly replicable. That is, suppose that an experiment could be run in which precisely the same set of applications was sent to the same admissions personnel, but there were variations in terms of the order in which the applications were read. Does anyone believe that precisely the same set of applicants would be offered admission? I do not. In this sense, I believe that there is an element of randomness on the process, because it is not truly deterministic.</p>
<p>The National Science Foundation ran an experiment about 30 years ago, concerning the review of proposals in my field. After a round of reviews that were run normally, they ran a second round with the same set of proposals, but different reviewers. There were some proposals that were recommended for funding both times and some that were recommended for funding neither time. However, as I recall some appreciable number of proposals “flipped” between the two sets of reviews.</p>
<p>I think that the same thing happens in college admissions. Applications that are discussed by the entire committee may hit the table at favorable or unfavorable times. The representative for a geographical region may have a bad cold when he/she reads a particular set of applications. There may have been various family events, good or bad, that affect the mood of the admissions representative, and his/her reaction to particular elements of the application. Some reviewers may put drama/musical theatre/debate/dance in each of the 24 possible different orders of preference. Similarly with sculpture/water colors/oils/charcoal, or Chinese/French/Spanish/Latin, or violin/oboe/bassoon/timpani. To say nothing of different preferences for activities among the different categories! I am certain that the admissions personnel try to compensate as far as possible for any bias that might result from their preferences. But it is difficult for me to believe that they eliminate it completely. So just having some difference in the set of people who read an application in depth could affect the outcome. This all assumes that the application is quite strong to begin with.</p>