Usability & Human-Computer Interaction Flashcards
7 cards from real Clinical Informatics Certification practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Usability & Human-Computer Interaction flashcards as text
The System Usability Scale (SUS) produces scores from 0 to 100. A score below which value is generally considered to indicate poor usability?
Answer: 68
A SUS score below 68 is considered below average and indicates significant usability problems that should be addressed.
In clinical informatics, 'situated cognition' most directly informs interface design by emphasizing that:
Answer: Cognitive performance is shaped by the environment and context in which tasks occur
Situated cognition theory holds that thinking is deeply influenced by context, meaning EHR interfaces must account for the chaotic, interruption-prone clinical environment.
Which of the following best describes 'prospective memory failure' as a usability risk in clinical systems?
Answer: Forgetting to complete a deferred action, such as signing an order left pending
Prospective memory failure occurs when a person forgets to perform a planned future action, such as following up on a pending order, a common patient safety risk in EHRs.
Which design strategy best supports users with varying levels of EHR expertise in the same clinical environment?
Answer: Adaptive interfaces that adjust complexity based on user role or experience level
Adaptive or role-based interfaces present relevant features and complexity levels appropriate to each user's expertise, supporting both novices and experts.
When conducting a card sorting exercise for clinical portal navigation design, the primary output is:
Answer: An understanding of how users mentally categorize information
Card sorting reveals how users naturally group and label information, which informs the development of intuitive navigation structures.
A clinical application allows users to customize their dashboard layout and save personal preferences. This feature primarily supports which Nielsen heuristic?
Answer: Flexibility and efficiency of use
Allowing users to personalize layouts and save shortcuts supports the flexibility and efficiency heuristic by letting experienced users tailor workflows to their needs.
In EHR design, 'information scent' refers to:
Answer: Cues in the interface that signal to users where relevant information can be found
Information scent describes interface cues — labels, icons, previews — that help users predict whether navigating further will lead to the information they need.