However, I will say that admissions comittees "judge" all sorts of things about applicants that help to determine, in part, if they are a good fit for the program....and ultimately, whether they are admitted. To tell a program that they are not allowed to judge and then weigh "maturity" in their applicants is ludicrous. I mentioned that we disqualified someone from consideration a couple years ago because of their poor state of dress at the interview. We made judgements and inferences about the candidate based on this. Thus, he was tossed. Should we be sued for this?
I agree with the gist of what you're saying though I am perplexed by you using the pronoun "we." Are you on admission committee for her school? Regardless, the only real issue is that she was not provided a reason. Now, this is important because it touches on a number of very important concerns:
The admission process is somewhat subjective. Yale's site, for instance, states: "A fine academic record, strong GRE scores, and evidence of research experience and potential are weighed together in the admission decision process." There is no guarantee that a person with a 3.99 GPA and a 1550 GRE will get admitted. In most programs, there has to be a very good match between the applicant's interest and the prof's line of research. And the interview and letters of reference are important too. Someone who is extremely racist in a blatant way, is unlikely to get admitted.
And therein lies the problem. Admission decisions are not based on purely objectively criteria, especially when it comes to judging if a person is mature enough. It is one thing, if she had scored 8/15 on some "emotional maturity" scale. And that those with a score below 10/15, were, say, four times more likely to seriously and irreversibly harm a patient in grad school or during first five years after graduation. Or if there was a strong correlation between that scale and grad school attrition.
So what, you say? Well, the issue is that there is always the potential for bigotry, sexism, racism, etc, when we're dealing with subjective decisions. Women becoming doctors? Heck, they're "too emotional." What about admitting minority students? With a big pool of qualified applicants, should we risk it, given how costly attrition can be? You see where I'm going with this? It is not that some committees at some point actually wrote down, 1500 on GRE, +8 pts, Person of African Origin, -5 points! It's assumptions about who can do what--without lots of evidence for/against.
Again, it would be much easier if the program would share with her their reasoning. Tell her to go backpacking or whatever is obviously not very helpful. More useful would be, say, telling her that her views regarding abortion were overly simplistic and one-dimensional...or the various ways she failed the stress interview. Or that they question her maturity when she said: "I wanna become a psychologist, you know, cause it's kind of cool and stuff, you know?!"
Now, I don't know if the admission committee HAS TO provide her with any detailed info on why she was not accepted. For all know, they have excellent reasons...which they refuse to really share. But I certainly think that there is nothing wrong with her challenging the school. At the very least she will learn more about herself. It seems to me that she is a driven and bright young lady with political aspirations. Let her challenge away and maybe she'll win...maybe they'll name a law after her...I am behind her 100%. Maybe she can force programs to stop pretending that psychology is some hardcore science, and admit that we know more about what makes a pretty good researcher as opposed to pretty good clinician.
I look forward to your friendly reply.