CPACC - Certified Professional in Accessibility Core Competencies Assistive Technologies and Strategies Questions and Answers 1 — Questions and Answers
Question 1: An individual with a significant mobility impairment, who can only reliably control their head movement, needs to operate a computer. Which of the following assistive technologies would be most appropriate for this user to select items on the screen?
- A standard joystick
- A large-print keyboard
- A switch device paired with a scanning interface (Correct answer)
- Voice recognition software
Correct answer: A switch device paired with a scanning interface
A switch device, which can be activated by a simple motion like a head tilt or puff of air, allows a user to interact with a computer when paired with a scanning interface. The interface highlights items on the screen one by one, and the user activates the switch to make a selection. This is a primary method for computer access for individuals with severe motor limitations.
Question 2: Which of the following best distinguishes a cochlear implant from a hearing aid?
- Hearing aids are only for temporary hearing loss, while cochlear implants are for permanent conditions.
- Cochlear implants amplify sound, while hearing aids convert sound into electrical signals.
- Hearing aids require surgery, whereas cochlear implants are worn externally.
- Cochlear implants bypass damaged parts of the inner ear to directly stimulate the auditory nerve, while hearing aids amplify sound. (Correct answer)
Correct answer: Cochlear implants bypass damaged parts of the inner ear to directly stimulate the auditory nerve, while hearing aids amplify sound.
The fundamental difference lies in their mechanism. Hearing aids work by making sounds louder (amplification) for the ear's existing structures to process. Cochlear implants are surgically implanted devices that bypass damaged hair cells in the cochlea and directly stimulate the auditory nerve with electrical signals, which the brain interprets as sound.
Question 3: A student with dysgraphia struggles with the physical act of writing but has no difficulty generating ideas and structuring sentences. Which of the following is an example of a low-tech assistive technology strategy that could directly support this student's needs in a classroom setting?
- Speech-to-text software on a laptop
- A pencil with a specialized grip (Correct answer)
- An audio recording of the lecture
- Word prediction software
Correct answer: A pencil with a specialized grip
A pencil grip is a low-tech tool designed to help individuals who have difficulty with the motor skills required for handwriting. It provides a simple, non-electronic adaptation to a standard writing tool, making it easier to hold and control. The other options are examples of high-tech assistive technology.
Question 4: What is the primary function of Augmentative and Alternative Communication (AAC) devices?
- To magnify text and images for users with low vision.
- To supplement or replace speech for individuals with communication impairments. (Correct answer)
- To convert digital text into synthesized speech for blind users.
- To assist users with mobility impairments in navigating their environment.
Correct answer: To supplement or replace speech for individuals with communication impairments.
Augmentative and Alternative Communication (AAC) encompasses a range of strategies and tools, from simple picture boards to complex speech-generating devices, designed to help individuals who have difficulty with spoken or written communication. They either supplement existing speech (augmentative) or provide a replacement for it (alternative).
Question 5: A user who is blind is navigating a long webpage using a screen reader. To get an overview of the page structure and find a specific section quickly, which keyboard command would be most efficient?
- Pressing the 'Tab' key repeatedly to move through all interactive elements.
- Using the down arrow key to read the page line by line.
- Pressing the 'H' key to navigate between headings. (Correct answer)
- Using 'Ctrl + F' to find a specific keyword.
Correct answer: Pressing the 'H' key to navigate between headings.
Screen readers like JAWS and NVDA allow users to navigate by semantic elements. Pressing the 'H' key jumps the focus from one heading to the next, which is the most efficient way to skim the content and understand the document's structure, assuming the page is properly coded with heading levels (<h1>, <h2>, etc.).
Question 6: Which of the following scenarios describes the use of an adaptive strategy rather than an assistive technology?
- A person with low vision uses a software magnifier to enlarge the text on their computer screen.
- A person with a hearing impairment uses a hearing aid to amplify sounds.
- A person with dyslexia changes the font and background color settings on a website to improve readability. (Correct answer)
- A person who is deaf uses a speech-generating device to communicate.
Correct answer: A person with dyslexia changes the font and background color settings on a website to improve readability.
An adaptive strategy involves modifying one's method or environment to accomplish a task, often using built-in features. Changing display settings like font and color is a strategy to make content more accessible. The other options describe the use of a specific tool or device (assistive technology) to perform a function that would otherwise be difficult or impossible.
CPACC - Certified Professional in Accessibility Core Competencies Assistive Technologies and Strategies Questions and Answers 1
An individual with a significant mobility impairment, who can only reliably control their head movement, needs to operate a computer.
Which of the following assistive technologies would be most appropriate for this user to select items on the screen?