It is not just about extra time on standardized tests, but in school as well. The article says that most diagnoses are legitimate but that process is subject to abuse and that
The reality is that time limits are built into most tests. The tests questions would have to be made much harder to distinguish the upper tail if there was unlimited time. And the cost would be higher. Plus the pressure would be even greater in some ways to be perfect and to check, double check and triple check the tests and sit there for hours. How would this work logistically? Kids that finish more quickly would have to wait for the kids that take double or triple time to move on to the next section? Or the sections would be all given at once? I don’t think the test security protocols would allow that.
The reality is that some kids who do really well in school don’t score as well on these tests. Sometimes because time is a factor but it could also be due to other factors.