Another unfrigginbelievable "news" story on TJ:
http://washingtonexaminer.com/local/education/2012/05/one-third-tj-freshmen-need-math-science-remediation/623696
160 TJ students are "not ready" for HS math and science? And you don't know why? Really???? How hard can this be to figure out? You could answer this question in short order just by surveying the students in the current freshman class.
You have a study set of 480. For each one, list the 7th and 8th grade math and science classes (and levels), school and teacher names, and grades earned. Then list the TJ prep work they did. All of it. The test prep classes. The SAT prep classes and their scores when they took it in 7th grade (not that it matters, but apparently the word is out that taking the SAT in 7th grade helps your admission probability). The resume-padding activities, clubs, camps, etc.
Then list all their other activities in 7th and 8th grades: sports (competitive and recreational), scouts, church, babysitting, chores, whatever.
Ask how they studied in middle school: alone, groups, home, school, tutored, etc.
Ask what their first language was, and what language is spoken at home.
One final question: Why do you want to be here?
End with a short interview if time permits to clarify and fill in the gaps, then annotate with their raw scores on the TJ admission test and the amount of remedial work the child needed once arriving at TJ.
The trends will jump out at you.
Do this now. There are many free days during the final three weeks of school. You will have your answers by the June School Board meeting.
Apply what you learn to next year's admission process.
Oh, and publish the results AND the data that was collected to reach these conclusions.