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I think the real problem described is that people are judging schools based on the performance of their students. There are other objective factors that won't
by spunker540 9y ago
I think the real problem described is that people are judging schools based on the performance of their students.
There are other objective factors that won't be as affected by selection bias such as: breadth of extra-curricular options in sports and in the arts. Number of AP classes offered. Teacher to student ratio. Budget per student. Does the school have newer computers, working instruments, modern facilities?
- richdougherty 9y agoAre you saying that people should judge schools based on the inputs that go into the schools rather than on any effects the schools produce in their students?
- spunker540 9y agoThe article points out the high degree of selection bias with schools and how that can make it very difficult to make apples-to-apples comparisons between schools. I was just trying to mention ways to compare schools that won't be affected by the selection bias described in the article.
- AstralStorm 9y agoA proper analysis will attempt to identify such factors and how important they are. Since the sample size is big enough it is not impossible to determine how much of the effect is those other measurable factors. Selection bias might be measured by the rejection rates on admission (esp. scores rejected)
- AstralStorm 9y agoSince I cannot edit it anymore, also the self selection bias can be measured (less adequately because questionnaires bring their own problems but still).