An assessment accommodation is a change to how a test is delivered — extra time, a screen reader, a scribe, a different input device, a quiet room — that removes a barrier unrelated to what the test measures. It changes the delivery, not the construct and not the standard. An accommodated candidate is held to exactly the same cut score as everyone else.
That distinction — delivery versus construct — settles most arguments teams actually have. Nine questions that recur when you assess across more than one country, answered from evidence and statute rather than custom.
1. Does extra time give candidates with disabilities an unfair advantage?
The evidence says extra time helps almost everyone, and helps candidates with disabilities somewhat more. Sireci, Scarpati and Li's review in Review of Educational Research found that extended time tended to improve the performance of all students, although students with disabilities tended to exhibit relatively greater score gains — the pattern known as differential boost.
It is also weaker than either side assumes. Gregg and Nelson's meta-analysis of nine studies of extended time on high school and post-secondary assessments found the gap between candidates with learning disabilities and their peers persisted in eight of the nine, at effect sizes from small to large. Their subtitle: "More Questions Than Answers." Extra time is not an advantage; on this evidence it is not even a reliable equaliser.
2. When is speed genuinely part of what we are measuring?
Ask what the score is used to predict. If the role requires the work at pace — a contact-centre agent on a live queue, a triage nurse — speed is construct-relevant, a timed section is defensible, and you accommodate around the clock rather than removing it. If the limit exists only to keep sittings short or deter lookup, it is construct-irrelevant and lengthening it costs nothing but scheduling.
Accessibility standards encode the same logic. WCAG 2.2's Success Criterion 2.2.1 requires adjustable time limits but exempts a limit that "is essential and extending it would invalidate the activity." That exemption is a claim you should be able to support from a job analysis — not a default setting.
3. Do we lower the cut score for an accommodated candidate?
No. The cut score is a policy judgment about what the job requires; the accommodation changes access. Moving both double-counts the adjustment and destroys comparability. If you want to lower the bar, what you probably have is an assessment measuring something the job does not require.
4. Should the hiring manager be told a score was accommodated?
Almost never, and the testing industry settled this a generation ago. Litigation brought on behalf of Mark Breimhorst led to a December 2000 settlement under which ETS stopped "flagging" accommodated scores on tests it administered, including the GMAT; the College Board agreed in July 2002 to stop flagging the SAT, PSAT and AP exams, and ACT followed. The presiding judge called flagging a "scarlet letter," and expert review found it lacked psychometric justification.
A flag tells the reader nothing about what the score means and a great deal about the candidate's medical status. Report the score.
5. What does the law actually require?
The duty is close to universal; the mechanics differ. Four jurisdictions, in brief:
United States
- 42 U.S.C. §12112(b)(7) prohibits using an employment test that fails to reflect a candidate's skills rather than their "impaired sensory, manual, or speaking skills" — unless those are what the test purports to measure.
- The EEOC's Technical Assistance Manual on Title I treats accommodation in testing as part of the selection procedure, not a favour granted afterwards.
United Kingdom
- Section 20 of the Equality Act 2010 creates the duty to make reasonable adjustments, including to how a provision or practice is applied.
- The duty bites once the employer knows, or could reasonably be expected to know, that an adjustment is needed — and the anticipatory duty on service providers under section 29 points the same way: design access in before anyone asks.
European Union
- Article 5 of Directive 2000/78/EC, the Employment Equality Directive, requires reasonable accommodation, transposed via each member state's own law.
- Where the assessment is an AI system used in recruitment, Article 16(l) of the AI Act obliges providers of high-risk systems to "ensure that the high-risk AI system complies with accessibility requirements in accordance with Directives (EU) 2016/2102 and (EU) 2019/882." The latter, the European Accessibility Act, has applied since 28 June 2025 — making accessibility conformance a procurement question.
India
- Section 17 of the Rights of Persons with Disabilities Act, 2016 requires modifications to examination systems, including scribes and extra time.
- The Department of Empowerment of Persons with Disabilities' guidelines, most recently the office memorandum of 10 August 2022 (File No. 29-6/2019-DD-III), supply the operational detail: compensatory time of "not less than 20 minutes per hour of the examination" for anyone eligible for a scribe, the candidate's right to bring a scribe of their own choice, and rules on the scribe's qualification relative to the candidate's.
India converts a vague standard into an auditable number. Nothing stops you adopting that 20-minutes-per-hour floor as a global default.
6. Nobody requests accommodations. Does that mean nobody needs them?
No. It means your process does not feel safe to disclose into.
The WHO estimates that 1.3 billion people, 16% of the world's population, experience significant disability. US Bureau of Labor Statistics data for 2025 put the employment-population ratio for people with a disability at 22.8% against 65.2% for those without, with unemployment at 8.3% versus 4.1%.
Disclosure also carries measurable cost. Schwitter, Chatzitheochari and Liebe's 2025 systematic review of 69 experimental hiring studies in Research in Social Stratification and Mobility found significant discrimination against wheelchair users in every audit study reviewed, with recent callback gaps of 16 to 55 percentage points, and gaps as large as 23 points where a mental health condition was disclosed.
Request volume is not a measure of need. It measures how much candidates trust the route.
7. What should we build in by default?
Each of these removes a barrier without touching the construct, so make it standard, not requested:
- Full keyboard operation and tested screen-reader compatibility, at WCAG 2.2 AA.
- No information conveyed by colour alone; text alternatives for every image-based item.
- Generous default time on anything not deliberately speeded, plus the ability to pause between sections.
- Plain-language instructions and a practice item, so the first scored question is not the first encounter with the interface.
- A request route that does not pass through the hiring manager — a form or inbox owned by the assessment or HR team.
- A published list of accommodations available without documentation.
On evidence: ask for the minimum needed to identify the barrier, and prefer functional descriptions to diagnoses. Reserve documentation requests for accommodations that are expensive, alter the assessment's content, or where you intend to say no.
8. How do accommodations interact with proctoring?
Badly, unless you plan for it. A screen reader, a magnifier, a scribe speaking aloud, frequent breaks — all look anomalous to automated monitoring. This is the argument for proctoring that produces integrity bands rather than binary verdicts, as AssessAll's does: a band prompts a human to look, and "used assistive technology as agreed" is something a reviewer resolves in seconds and an automated gate gets wrong. Record the accommodation before the session, so whoever reviews the flag knows what it is.
9. What needs to be written down?
- The job analysis evidence for any element you claim is essentially speeded.
- The accommodation requested, what was granted and who decided — held separately from the hiring file.
- The delivered conditions for each session, so a score can be interpreted later.
- Your accessibility conformance statement and its date. Conformance claimed in 2022 against WCAG 2.1 is not conformance against WCAG 2.2, a W3C Recommendation since December 2024.
The fairness chapter of the Standards for Educational and Psychological Testing is the reference point: accessibility is a property of the test, not a concession made afterwards.
The takeaway
Accommodation does not soften the standard — it is how you make sure a score reflects the candidate's ability rather than your test's design. Build access in by default, leave the cut score where the job analysis put it, and never annotate a score report with anything a candidate told you about their health.