Quiz of the Day
Digital Accessibility
Thursday, 21 May 2026
Global Accessibility Awareness Day — inclusive design, assistive tech, digital rights
1. What does the acronym WCAG stand for in web accessibility?
- World Computer Access Group
- Wireless Content Access Gateway
- Web Content Accessibility Guidelines
- Web Coding and Accessibility Guide
WCAG is maintained by the W3C and has three conformance levels: A, AA, and AAA. Most laws worldwide require AA compliance. The guidelines were first published in 1999 and have become the global standard for digital accessibility.
2. What assistive technology reads screen content aloud for visually impaired users?
- Screen magnifier
- Screen reader
- Voice recorder
- Text predictor
The first screen reader, JAWS (Job Access With Speech), launched in 1989. Today's built-in options include VoiceOver on Apple devices and NVDA (free) on Windows. Screen readers process pages sequentially, which is why proper heading structure and alt text matter so much.
3. What percentage of the global population lives with some form of disability?
- About 10%
- About 5%
- About 25%
- About 16%
The WHO estimates that 1.3 billion people — roughly 16% of the world's population — experience significant disability. This makes people with disabilities the world's largest minority group, yet over 95% of websites still fail to meet basic accessibility standards.
4. What is 'alt text' used for on websites?
- A backup font choice
- Alternative styling for images
- A text description of an image for screen readers
- An alternative language translation
Good alt text is concise and descriptive — 'Golden retriever catching a frisbee in a park' rather than 'image' or 'photo.jpg'. Decorative images should have empty alt attributes (alt='') so screen readers skip them entirely rather than reading the filename.
5. Which colour combination is generally the most difficult for colour-blind users to distinguish?
- Black and white
- Purple and orange
- Blue and yellow
- Red and green
Red-green colour blindness (deuteranopia/protanopia) affects about 8% of men and 0.5% of women of Northern European descent. This is why traffic lights use position (top/bottom) as well as colour, and why good design never relies on colour alone to convey meaning.
6. What does the 'tab key' allow users to do on a website?
- Indent text in a form
- Navigate between interactive elements using only the keyboard
- Open a new browser tab
- Switch languages
Keyboard navigation is essential for people who cannot use a mouse — including those with motor impairments, repetitive strain injuries, or temporary injuries like a broken arm. A visible focus indicator (the outline around selected elements) is critical but often removed by designers for aesthetic reasons.
7. What technology allows deaf or hard-of-hearing users to follow video content?
- Haptic feedback
- Audio description
- Screen reader
- Closed captions
Captions benefit far more people than just deaf users. Studies show 80% of people who use captions are not deaf or hard of hearing — they use them in noisy environments, while learning a language, or to aid comprehension. Adding captions also boosts video engagement by 40%.
8. What is the minimum recommended contrast ratio for normal text against its background (WCAG AA)?
- 2:1
- 7:1
- 4.5:1
- 3:1
The 4.5:1 ratio was calculated to account for vision loss typically experienced by users around age 80. Large text (18pt+) only needs 3:1 because bigger letters are inherently easier to read. Light grey text on white — a common design trend — almost always fails this test.
9. Who invented the Braille writing system?
- Louis Braille
- Alexander Graham Bell
- Helen Keller
- Thomas Edison
Louis Braille was blinded in an accident at age 3 and developed his tactile writing system at just 15 years old in 1824. He adapted a military 'night writing' code designed for soldiers to read messages in the dark. His system uses patterns of 1-6 raised dots to represent each letter.
10. What does ARIA stand for in web development?
- Accessible Rich Internet Applications
- Automated Reading Interface for Accessibility
- Advanced Responsive Interactive Architecture
- Assistive Resource Integration API
ARIA attributes act as a bridge between complex web interfaces and assistive technologies. However, the first rule of ARIA is: don't use ARIA if you can use native HTML instead. A simple <button> element is always more accessible than a <div> with ARIA roles bolted on.
11. Which tech company created VoiceOver, a built-in screen reader for its devices?
- Apple
- Microsoft
- Samsung
Apple introduced VoiceOver on Mac in 2005 and iPhone in 2009, making it the first phone with a built-in gesture-based screen reader. Steve Jobs reportedly insisted on accessibility being built into the OS rather than requiring separate paid software.
12. What is 'cognitive accessibility' primarily concerned with?
- Making websites faster to load
- Improving computer processing power
- Designing for users with learning, memory, or attention difficulties
- Training AI to think like humans
Cognitive disabilities are the most common type of disability but the least addressed in digital design. Simple improvements like clear language, consistent navigation, error prevention, and the ability to pause moving content can benefit users with dyslexia, ADHD, autism, and age-related cognitive decline.
13. What landmark US law requires federal agencies to make electronic and IT accessible to people with disabilities?
- ADA Title III
- Section 508
- FCC Act
- HIPAA
Section 508 of the Rehabilitation Act was strengthened in 1998 and refreshed in 2017 to align with WCAG 2.0 AA. It has driven accessibility improvements well beyond government, as many private companies adopt the same standards to avoid legal risk and serve more customers.
14. What feature allows users to control a computer using only eye movements?
- Brain-computer interface
- Eye-tracking technology
- Gesture control
- Voice recognition
Modern eye-tracking devices like Tobii Dynavox allow people with conditions like ALS or locked-in syndrome to type, browse the web, and communicate. Physicist Stephen Hawking used a cheek-muscle sensor connected to a computer, but today's eye trackers can process gaze positions 60 times per second.
15. What principle says that accessible design benefits ALL users, not just those with disabilities?
- Universal design
- Responsive design
- Exclusive design
- Adaptive design
Classic examples include kerb cuts (designed for wheelchairs but used by everyone with prams, trolleys, or bikes), automatic doors, and TV captions. In digital design, accessible sites load faster, rank better in search engines, and have lower bounce rates — proving that good accessibility is simply good design.