Why Most People Completely Miss What Tara A Caan Is Actually Saying About Neurodiversity
I spent three years trying to get institutional review boards to approve studies that aligned with Caan's framework, and honestly, it was the most frustrating process of my career. The problem isn't that her work is inaccessible. The problem is that everyone wants to use it as a checklist rather than a lens. You'll see researchers pulling individual concepts from her papers and treating them like isolated variables when the whole point is that they only make sense in combination. I learned this the hard way after submitting a grant proposal that got torn apart by reviewers who clearly hadn't actually read the primary texts. Her central argument is straightforward if you read her carefully: neurodiversity isn't a collection of separate conditions lumped together under one banner. It's a fundamentally different way of understanding how cognitive variation operates across populations. Most people approach this from a deficit model. They start with what someone can't do and work backward. Caan flips that. She starts with the cognitive profile itself and asks what environmental and social factors actually create the barriers. This seems like a small distinction. It's not. It changes every single study design you build on top of it. When I first encountered her work around 2019, I was working with a university disability services office on an accommodation audit. We had been using the standard ADA compliance framework, which basically amounts to ticking boxes. Self-reported disability status, documented diagnosis, reasonable accommodation requested. Clean, efficient, and completely useless for understanding why students were still failing at rates that made no sense. Caan's approach forced me to look at the actual learning environment. Not the building accessibility. The pedagogical structure. The pacing. The implicit assumptions about how information gets processed.
One specific example that still drives me crazy. We audited a department's course materials for compliance. Everything checked out. Every syllabus had the accommodation statement. Every professor had attended the mandatory training. But when we actually looked at student outcomes, autistic students in that department failed at nearly three times the rate of neurotypical peers, and this gap existed even among students who had disclosed their disability and received full accommodations. The problem wasn't access to the material. It was that the assessment methods assumed a very narrow cognitive processing style. Essays that required extensive free-form synthesis without intermediate scaffolding. Group projects that counted heavily toward grades. Timed exams with no flexibility on presentation format. None of this violated any policy. That's the whole point. Here's what most people don't pick up on reading the summaries. Caan isn't arguing for better accommodation. She's arguing that accommodation-only approaches are structurally insufficient. You can keep adding ramps and extended time and note-takers and you will still have systems that exclude people because the core design assumes uniform cognitive processing. The workaround I found was to treat every course or program as a cognitive accessibility audit rather than a legal compliance exercise. This means mapping every assessment method against different processing styles and asking which ones create unnecessary friction. It takes longer. It requires actual engagement with the material instead of a checklist. But it actually changes outcomes. I remember one particular semester where we redesigned a introductory psychology course using this framework. The original version had a midterm that was essentially a long-form essay under time pressure. We kept the content requirements but split it into a take-home component and an in-class component with different formats. The take-home allowed for extended processing time. The in-class part used structured outlining rather than free-form writing. Total grade weight stayed the same. The failure rate for autistic students dropped from about forty percent to eighteen percent. That's not a marginal improvement. That's the difference between a program that filters people out and one that actually teaches them.
There are legitimate criticisms of Caan's framework that don't get enough attention. The primary one is measurement. Her approach requires detailed cognitive profiling that most institutions aren't set up to do. Standardized testing batteries take time and expertise. Self-report measures are unreliable for this population. I've seen people try to shortcut this with quick online screeners, and the results are almost always garbage. The data looks clean but it's not actually measuring what you think it's measuring. If you're going to implement this properly, you need either existing clinical relationships with the population you're studying or a substantial budget for assessment tools and trained personnel. Another issue that comes up constantly is the assumption that cognitive profiles are stable enough to build programs around. They're not. People's needs shift depending on stress levels, environment, comorbidities, and a dozen other factors. I spent six months trying to build a one-size-fits-all accommodation guide based on diagnosis categories. It collapsed immediately in practice because two students with the same diagnosis needed completely different structural adjustments. The workaround was to move toward individualized cognitive mapping at the start of each term rather than relying on static documentation. This means more administrative work upfront but significantly better outcomes throughout the semester. There's also the problem of overgeneralization. Some researchers have taken Caan's framework and applied it so broadly that it loses its explanatory power. Everything becomes "cognitive diversity" and suddenly you're claiming that extroversion and introversion fall under the same framework. That's not what she wrote. The framework is specifically about developmental and neurological cognitive variation, not personality differences. Confusing these two categories leads to programs that try to accommodate everyone and end up accommodating no one effectively.
Get the Full Details
If you're looking to actually use this work rather than just cite it, start with the primary texts instead of secondary summaries. The 2021 paper in Journal of Neurodiversity Studies lays out the core framework more clearly than any review article. Then look at the follow-up implementation papers from 2022 and 2023 that show actual institutional changes. The theory is solid. The application is where most people stumble because it requires genuine structural change rather than surface-level adjustments. Be honest about what your institution can actually support before you commit to a full implementation. Half-measures tend to make things worse by creating the appearance of progress without changing the underlying mechanisms that cause exclusion in the first place.
