I couldn’t read more than the beginning of the article due to paywall. Does it actually parse out what percentage of those students have extra time on tests accommodations vs other accommodations? The headline and the first few lines seem to conflate those things or obfuscate the information. Not all students with disabilities, even mental health ones like anxiety or depression, get extra time on tests as an accommodation. But, it felt like they were trying to suggest we should assume almost all of that 38% at Stanford for example do. I’d want to see data before jumping to that conclusion.
Also, as someone who was diagnosed with ADHD as an adult, I can attest to the notion that there was severe underdiagnosis of invisible disabilities until recent decades. When I attended my first living with ADHD classes, there were a ton of middle age and beyond high performing people who never got diagnosed and just had to grit it out for years. A significant part of the uptick is recognizing what was always there.