A certain percentage of people just have test taking anxiety or other issues that impede their ability to test well. If you judge only on the results of a test,

A certain percentage of people just have test taking anxiety or other issues that impede their ability to test well. If you judge only on the results of a test, then you've just eliminated all those people from the start. But then our school system tends to already be biased against such people so it wouldn't really be that out of line.