Which LOSS competency focuses on understanding how to use the aided and/or unaided AAC system?

• A. Linguistic
• B. Strategic
• C. Operational
• D. Social

Answer: (C)

The main idea being tested is how the user actually operates and uses the communication system. Operational competence focuses on the hands-on, functional aspects of using AAC—how to access the symbols, navigate the interface or choose an access method, switch between pages, set up and position the device, manage reliability and maintenance, and how to use the system consistently in daily life. This applies whether the person uses an assisted (aided) device or relies on unaided methods like signing or gesture, since both require knowing how to physically and practically produce messages.

Linguistic competence is about language form and structure, not about how to operate the system. Strategic competence covers planning and compensatory strategies to communicate effectively when the system is limited or breaking down. Social competence involves using communication in social contexts and with others.