Yesterday, Fordham released a groundbreaking study examining the achievement of individual high-performing students?or ?high flyers??over time. While accountability systems today have placed primary emphasis on the performance of low-achieving students, scant research has examined the progress of high achievers. This new study begins to fill that void by investigating whether high achievers remain that way over time; whether those students who fall out of the high-achieving ranks fall far below; and whether high achievers demonstrate more progress over time than their middle- and low-achieving peers.
Before we dive into the first of those questions, a little background on the methodology. We tracked two cohorts of students over time: an elementary/middle school group from third to eighth grades, and a middle/high school group from sixth to tenth grades. In each group, we defined high-achieving students as those who ranked at or above the 90th percentile, based on an external norm. In other words, the study sample (comprising the two cohorts) and the normed sample were separate, meaning that more or less than 10 percent of the students in the study could perform at or above the 90th normed percentile. We examined student performance in math and reading.
Now, the first question: Do high achievers remain high-achieving over time?
The answer: A majority of high flyers remain that way over time, but substantial numbers ?lose altitude.? As shown in...