The major concern of this study is finding and explaining the effect of school district on high school students in Seoul city. If we try to find out the effect of school district exactly, we must control the starting achievement level of students and all the other variables which can effect on the achievement growth including socioeconomic status of student, private education experience, individual endeavor, learning style and attitude toward study etc. But because of the data limit, we only control the effect of starting achievement level on the result achievement level.
According to the analysis we can know that there are so much difference of achievement level and growth rate between school districts of Seoul. Non the less the effect of District 8 is not more than any other districts especially. We believe that the District 8 is the best area and so many people like to move to this area for their child's education career expecially for top ranking university enterance. For this, the prices of this area's property have been raised so high during last 20 years. This social problem makes other area people be anxious about their child education so abnormally.
We can assume that the District 8's educational effect is not higher than common sense. And so the move rush to this area is meaningless if they want to expect this district's high educational effect. I think the superficial effect of this District 8 is overestimated than reality. But it's our duty why the difference of each district's effect size is made. Using more scientifically designed data and multilevel analysis, we must study more deeply this matter.