IAAP CPACC — CERTIFIED PROFESSIONAL IN ACCESSIBILITY CORE COMPETENCIES
VERIFIED EXAM SOLUTIONS - COMPREHENSIVE QUESTIONS AND ANSWERS -
CURRENT VERSION (2026/2027)
1. What is the definition of disability according to the social model?
ANSWER The social model of disability defines disability as the result
of the interaction between a person with an impairment and barriers
created by the social and physical environment, rather than the
impairment itself.
2. What distinguishes the medical model of disability from the social
model?
ANSWER The medical model views disability as a problem located
within the individual that requires medical treatment or cure. The social
model views disability as caused by societal barriers that need to be
removed or addressed.
3. What is the biopsychosocial model of disability used in the ICF?
ANSWER The biopsychosocial model (used in the WHO's
International Classification of Functioning, Disability and Health)
integrates both the medical and social models, recognizing disability as
an interaction between health conditions, personal factors, and
environmental factors.
4. Define 'impairment' in the context of accessibility.
ANSWER An impairment is any loss or abnormality of body structure
or physiological or psychological function. It is distinct from disability,
which also involves barriers in the environment.
5. What are the major categories of disabilities relevant to
accessibility?
ANSWER The major categories include: visual (blindness, low vision,
color blindness), auditory (deafness, hard of hearing), motor/physical
(limited dexterity, paralysis), cognitive (intellectual disabilities, learning
disabilities, ADHD), and speech/language disabilities.
,6. What is a screen reader and who uses it?
ANSWER A screen reader is assistive technology software that
converts text and other on-screen information into synthesized speech
or Braille output. It is primarily used by people who are blind, have low
vision, or have reading disabilities.
7. Name three common screen readers used by people who are blind.
ANSWER JAWS (Job Access With Speech), NVDA (NonVisual
Desktop Access), and VoiceOver (built into Apple devices) are three of
the most widely used screen readers.
8. What is a refreshable Braille display?
ANSWER A refreshable Braille display is a hardware device that
converts digital text into Braille characters using pins that raise and
lower. It provides tactile reading for users who are deaf-blind or prefer
reading in Braille.
9. What assistive technology helps people with low vision?
ANSWER Screen magnification software (such as ZoomText or
MAGic), high-contrast display settings, large-print materials, and optical
magnifiers help people with low vision access content.
10. What is color blindness and how does it affect web design?
ANSWER Color blindness (color vision deficiency) is an inability to
distinguish certain colors, most commonly red-green. It affects web
design by requiring that color not be used as the sole means of
conveying information.
11. What is the difference between deafness and hard of hearing?
ANSWER Deafness typically refers to a profound hearing loss where
the individual cannot use hearing for communication. Hard of hearing
refers to a partial hearing loss that may still allow some auditory
communication, often aided by hearing devices.
12. What assistive technologies do people who are deaf or hard of
hearing commonly use?
ANSWER Captioning (CART, captions), sign language interpreters,
video relay services (VRS), TTY/TDD devices, hearing loops/induction
loops, visual alert systems, and real-time text (RTT) are commonly used.
13. What is CART captioning?
, ANSWER CART (Communication Access Realtime Translation) is a
service where a trained stenographer transcribes spoken language into
text in real time, displayed for people who are deaf or hard of hearing.
14. What are the different types of motor/physical disabilities relevant
to accessibility?
ANSWER Types include tremors, limited fine motor control, paralysis
(paraplegia, quadriplegia), amputation, repetitive stress injuries, and
conditions like cerebral palsy, muscular dystrophy, and Parkinson's
disease.
15. What input devices do people with limited hand dexterity use?
ANSWER Alternative input devices include mouth sticks, head
pointers, eye-tracking systems, sip-and-puff devices, switch access
systems, voice recognition software (like Dragon NaturallySpeaking),
and specialized keyboards.
16. What is a switch access system?
ANSWER A switch access system allows users to control a computer
or device through a single button or switch input, often used by people
with severe motor disabilities. The device scans through options and the
user activates the switch to select.
17. What is eye-tracking technology?
ANSWER Eye-tracking technology uses infrared sensors or cameras
to follow a user's gaze and translate eye movement into cursor
movement or text input. It enables people with severe motor disabilities
to control computers.
18. What is voice recognition software and how does it support
accessibility?
ANSWER Voice recognition (speech-to-text) software like Dragon
NaturallySpeaking converts spoken words into text and computer
commands, enabling people with motor disabilities or those unable to
use a keyboard to control computers and dictate content.
19. Define cognitive disability in the accessibility context.
ANSWER Cognitive disabilities affect mental processes including
memory, problem-solving, attention, reading, linguistic, and verbal
comprehension. Examples include intellectual disabilities, learning
, disabilities (dyslexia), ADHD, autism spectrum disorder, and acquired
brain injuries.
20. How does dyslexia affect a person's interaction with digital
content?
ANSWER Dyslexia is a language-based learning disability that affects
reading, writing, and spelling. People with dyslexia may struggle with
dense text, complex fonts, poor contrast, and lack of clear structure—
benefiting from readable fonts, spacing, and alternative formats.
21. What assistive technologies help people with cognitive
disabilities?
ANSWER Plain language tools, text-to-speech software, symbol-
based communication systems (AAC), reading aids, spell checkers,
predictive text, simplified interfaces, and reminder/scheduling apps help
people with cognitive disabilities.
22. What is Augmentative and Alternative Communication (AAC)?
ANSWER AAC refers to methods and tools that supplement or replace
speech for people who have difficulty communicating verbally. This
includes low-tech options (picture boards) and high-tech options
(speech-generating devices).
23. What is the difference between a temporary and a permanent
disability?
ANSWER A permanent disability is long-term or lifelong (e.g.,
blindness from birth). A temporary disability is short-term (e.g., a broken
arm). Accessibility accommodations benefit both, and situational
limitations (e.g., bright sunlight making a screen hard to see) follow
similar patterns.
24. What is the concept of situational disability?
ANSWER Situational disability refers to a context in which a person
without a permanent disability experiences limitations similar to those
with disabilities—e.g., a noisy environment simulating hearing difficulty,
or bright sunlight simulating low vision. It underscores universal design's
broad value.
25. What is speech recognition accessibility and who benefits?
ANSWER Speech recognition accessibility ensures that voice-input
systems can be used effectively. It benefits people with motor
VERIFIED EXAM SOLUTIONS - COMPREHENSIVE QUESTIONS AND ANSWERS -
CURRENT VERSION (2026/2027)
1. What is the definition of disability according to the social model?
ANSWER The social model of disability defines disability as the result
of the interaction between a person with an impairment and barriers
created by the social and physical environment, rather than the
impairment itself.
2. What distinguishes the medical model of disability from the social
model?
ANSWER The medical model views disability as a problem located
within the individual that requires medical treatment or cure. The social
model views disability as caused by societal barriers that need to be
removed or addressed.
3. What is the biopsychosocial model of disability used in the ICF?
ANSWER The biopsychosocial model (used in the WHO's
International Classification of Functioning, Disability and Health)
integrates both the medical and social models, recognizing disability as
an interaction between health conditions, personal factors, and
environmental factors.
4. Define 'impairment' in the context of accessibility.
ANSWER An impairment is any loss or abnormality of body structure
or physiological or psychological function. It is distinct from disability,
which also involves barriers in the environment.
5. What are the major categories of disabilities relevant to
accessibility?
ANSWER The major categories include: visual (blindness, low vision,
color blindness), auditory (deafness, hard of hearing), motor/physical
(limited dexterity, paralysis), cognitive (intellectual disabilities, learning
disabilities, ADHD), and speech/language disabilities.
,6. What is a screen reader and who uses it?
ANSWER A screen reader is assistive technology software that
converts text and other on-screen information into synthesized speech
or Braille output. It is primarily used by people who are blind, have low
vision, or have reading disabilities.
7. Name three common screen readers used by people who are blind.
ANSWER JAWS (Job Access With Speech), NVDA (NonVisual
Desktop Access), and VoiceOver (built into Apple devices) are three of
the most widely used screen readers.
8. What is a refreshable Braille display?
ANSWER A refreshable Braille display is a hardware device that
converts digital text into Braille characters using pins that raise and
lower. It provides tactile reading for users who are deaf-blind or prefer
reading in Braille.
9. What assistive technology helps people with low vision?
ANSWER Screen magnification software (such as ZoomText or
MAGic), high-contrast display settings, large-print materials, and optical
magnifiers help people with low vision access content.
10. What is color blindness and how does it affect web design?
ANSWER Color blindness (color vision deficiency) is an inability to
distinguish certain colors, most commonly red-green. It affects web
design by requiring that color not be used as the sole means of
conveying information.
11. What is the difference between deafness and hard of hearing?
ANSWER Deafness typically refers to a profound hearing loss where
the individual cannot use hearing for communication. Hard of hearing
refers to a partial hearing loss that may still allow some auditory
communication, often aided by hearing devices.
12. What assistive technologies do people who are deaf or hard of
hearing commonly use?
ANSWER Captioning (CART, captions), sign language interpreters,
video relay services (VRS), TTY/TDD devices, hearing loops/induction
loops, visual alert systems, and real-time text (RTT) are commonly used.
13. What is CART captioning?
, ANSWER CART (Communication Access Realtime Translation) is a
service where a trained stenographer transcribes spoken language into
text in real time, displayed for people who are deaf or hard of hearing.
14. What are the different types of motor/physical disabilities relevant
to accessibility?
ANSWER Types include tremors, limited fine motor control, paralysis
(paraplegia, quadriplegia), amputation, repetitive stress injuries, and
conditions like cerebral palsy, muscular dystrophy, and Parkinson's
disease.
15. What input devices do people with limited hand dexterity use?
ANSWER Alternative input devices include mouth sticks, head
pointers, eye-tracking systems, sip-and-puff devices, switch access
systems, voice recognition software (like Dragon NaturallySpeaking),
and specialized keyboards.
16. What is a switch access system?
ANSWER A switch access system allows users to control a computer
or device through a single button or switch input, often used by people
with severe motor disabilities. The device scans through options and the
user activates the switch to select.
17. What is eye-tracking technology?
ANSWER Eye-tracking technology uses infrared sensors or cameras
to follow a user's gaze and translate eye movement into cursor
movement or text input. It enables people with severe motor disabilities
to control computers.
18. What is voice recognition software and how does it support
accessibility?
ANSWER Voice recognition (speech-to-text) software like Dragon
NaturallySpeaking converts spoken words into text and computer
commands, enabling people with motor disabilities or those unable to
use a keyboard to control computers and dictate content.
19. Define cognitive disability in the accessibility context.
ANSWER Cognitive disabilities affect mental processes including
memory, problem-solving, attention, reading, linguistic, and verbal
comprehension. Examples include intellectual disabilities, learning
, disabilities (dyslexia), ADHD, autism spectrum disorder, and acquired
brain injuries.
20. How does dyslexia affect a person's interaction with digital
content?
ANSWER Dyslexia is a language-based learning disability that affects
reading, writing, and spelling. People with dyslexia may struggle with
dense text, complex fonts, poor contrast, and lack of clear structure—
benefiting from readable fonts, spacing, and alternative formats.
21. What assistive technologies help people with cognitive
disabilities?
ANSWER Plain language tools, text-to-speech software, symbol-
based communication systems (AAC), reading aids, spell checkers,
predictive text, simplified interfaces, and reminder/scheduling apps help
people with cognitive disabilities.
22. What is Augmentative and Alternative Communication (AAC)?
ANSWER AAC refers to methods and tools that supplement or replace
speech for people who have difficulty communicating verbally. This
includes low-tech options (picture boards) and high-tech options
(speech-generating devices).
23. What is the difference between a temporary and a permanent
disability?
ANSWER A permanent disability is long-term or lifelong (e.g.,
blindness from birth). A temporary disability is short-term (e.g., a broken
arm). Accessibility accommodations benefit both, and situational
limitations (e.g., bright sunlight making a screen hard to see) follow
similar patterns.
24. What is the concept of situational disability?
ANSWER Situational disability refers to a context in which a person
without a permanent disability experiences limitations similar to those
with disabilities—e.g., a noisy environment simulating hearing difficulty,
or bright sunlight simulating low vision. It underscores universal design's
broad value.
25. What is speech recognition accessibility and who benefits?
ANSWER Speech recognition accessibility ensures that voice-input
systems can be used effectively. It benefits people with motor
