'Tis the Season to Be Testing
People want to know how we do on these tests. Here is a very general but accurate answer: When we measure ourselves against the national norms, our median scores are Stanines 7 or 8. (Stanines are a way of dividing a normal bell-curve distribution into nine segments, called "standard nines" or "stanines" for short. I have put a diagram below. Stanines 4-6 are average, and account for the largest number of scores in such a standard distribution. Stanines 7-9, which comprise a smaller number of scores, are considered above average.) When we measure Trinity students against the independent school norms, our median scores are 5 or 6, which is to say that our students are scoring at or slightly above the average for independent schools.