C773 | WGU
OBJECTIVE ASSESSMENT - EXAM
User Interface
Design
C773 Task 1 | Passed Submission
75 100% 2026/2027
QUESTIONS VERIFIED ANSWERS EDITION
TOPICS COVERED
UI Design Principles & Best Practices Usability Testing & Evaluation
User Research & Persona Development Accessibility & Inclusive Design
Wireframing & Prototyping
COVER PAGE - 1
C773 User Interface Design Task 1 - 2026/2027 | Passing Score: 80% | Page 1 of 43
,SECTION 1 | UI Design Principles & Best Practices | Q1-Q20
C773 User Interface Design Task 1 2026/2027
Q1 Question 1 of 75
A designer is building a checkout flow for an e-commerce platform targeting users aged 55-70.
Early usability tests reveal that users frequently miss the 'Complete Purchase' button because
it blends into the page background. Which design principle is most directly violated by this
interface?
A. Affordance and signifiers
B. Hick's Law of decision time
C. Visibility of system status
D. Fitts's Law of target acquisition
Correct Answer: A
Rationale:
Affordance refers to the perceived action possibilities of an element, and signifiers are the visual cues that
communicate where action should occur. A button that blends into the background fails to signal its
clickability, leaving users unable to perceive the available action. While Fitts's Law relates to target size and
distance, the issue here is the absence of a perceptual cue, not motor difficulty.
C773 User Interface Design Task 1 - 2026/2027 | Passing Score: 80% | Page 2 of 43
,SECTION 1 - UI DESIGN PRINCIPLES & BEST PRACTICES (continued)
Q2 Question 2 of 75
A product team is redesigning a hospital intake form. They decide to group demographic
fields, insurance fields, and medical history fields into three visually distinct sections using
spacing and subtle borders. Which Gestalt principle is the team primarily applying?
A. Similarity
B. Proximity
C. Continuity
D. Closure
Correct Answer: B
Rationale:
Proximity describes how elements placed close together are perceived as related groups. By using spacing
to separate the three field clusters, the team leverages proximity to communicate structure. Similarity would
require shared visual properties such as color or shape, not spacing alone.
Q3 Question 3 of 75
A startup launches a new mobile fitness app aimed at users aged 18-30. The lead designer
insists on using a vibrant neon color palette with strong gradients and animated transitions
throughout the interface. After launch, analytics show high bounce rates within the first 30
seconds. Which principle best explains this outcome?
A. Aesthetic-usability effect
B. Tesler's Law of conservation of complexity
C. Signal-to-noise ratio
D. Paradox of the active user
Correct Answer: C
Rationale:
Signal-to-noise ratio compares meaningful information (signal) to distracting decoration (noise). Excessive
neon colors and animations add visual noise that competes with the app's core functionality, overwhelming
new users. The aesthetic-usability effect would suggest that attractive designs are perceived as easier to
use, the opposite of what is observed here.
C773 User Interface Design Task 1 - 2026/2027 | Passing Score: 80% | Page 3 of 43
, SECTION 1 - UI DESIGN PRINCIPLES & BEST PRACTICES (continued)
Q4 Question 4 of 75
A financial dashboard displays five different chart types, three different font families, and four
button styles on a single screen. Users report that the interface feels 'chaotic and
untrustworthy.' Which design principle should the team prioritize to address this feedback?
A. Flexibility and efficiency of use
B. Recognition over recall
C. Error prevention
D. Consistency and standards
Correct Answer: D
Rationale:
Consistency and standards ensures that similar elements share visual and behavioral patterns, reducing
cognitive load. The chaotic mix of fonts, charts, and buttons violates this principle, leading users to perceive
the interface as unprofessional. Recognition over recall addresses memory burden, not visual coherence.
Q5 Question 5 of 75
A travel booking website includes a search filter labeled 'Economy Saver' without any tooltip or
description. Users consistently select this filter expecting the cheapest option, but it actually
returns only flights with no checked baggage included. Which heuristic is most directly
violated?
A. Match between system and the real world
B. Help and documentation
C. Visibility of system status
D. Help users recognize, diagnose, and recover from errors
Correct Answer: A
Rationale:
Match between system and the real world requires that language and concepts align with user
expectations. The label 'Economy Saver' misleadingly suggests savings, creating a mismatch between the
system's terminology and the user's mental model. Error recovery would apply only after a mistake has
occurred, not to the original labeling.
C773 User Interface Design Task 1 - 2026/2027 | Passing Score: 80% | Page 4 of 43
OBJECTIVE ASSESSMENT - EXAM
User Interface
Design
C773 Task 1 | Passed Submission
75 100% 2026/2027
QUESTIONS VERIFIED ANSWERS EDITION
TOPICS COVERED
UI Design Principles & Best Practices Usability Testing & Evaluation
User Research & Persona Development Accessibility & Inclusive Design
Wireframing & Prototyping
COVER PAGE - 1
C773 User Interface Design Task 1 - 2026/2027 | Passing Score: 80% | Page 1 of 43
,SECTION 1 | UI Design Principles & Best Practices | Q1-Q20
C773 User Interface Design Task 1 2026/2027
Q1 Question 1 of 75
A designer is building a checkout flow for an e-commerce platform targeting users aged 55-70.
Early usability tests reveal that users frequently miss the 'Complete Purchase' button because
it blends into the page background. Which design principle is most directly violated by this
interface?
A. Affordance and signifiers
B. Hick's Law of decision time
C. Visibility of system status
D. Fitts's Law of target acquisition
Correct Answer: A
Rationale:
Affordance refers to the perceived action possibilities of an element, and signifiers are the visual cues that
communicate where action should occur. A button that blends into the background fails to signal its
clickability, leaving users unable to perceive the available action. While Fitts's Law relates to target size and
distance, the issue here is the absence of a perceptual cue, not motor difficulty.
C773 User Interface Design Task 1 - 2026/2027 | Passing Score: 80% | Page 2 of 43
,SECTION 1 - UI DESIGN PRINCIPLES & BEST PRACTICES (continued)
Q2 Question 2 of 75
A product team is redesigning a hospital intake form. They decide to group demographic
fields, insurance fields, and medical history fields into three visually distinct sections using
spacing and subtle borders. Which Gestalt principle is the team primarily applying?
A. Similarity
B. Proximity
C. Continuity
D. Closure
Correct Answer: B
Rationale:
Proximity describes how elements placed close together are perceived as related groups. By using spacing
to separate the three field clusters, the team leverages proximity to communicate structure. Similarity would
require shared visual properties such as color or shape, not spacing alone.
Q3 Question 3 of 75
A startup launches a new mobile fitness app aimed at users aged 18-30. The lead designer
insists on using a vibrant neon color palette with strong gradients and animated transitions
throughout the interface. After launch, analytics show high bounce rates within the first 30
seconds. Which principle best explains this outcome?
A. Aesthetic-usability effect
B. Tesler's Law of conservation of complexity
C. Signal-to-noise ratio
D. Paradox of the active user
Correct Answer: C
Rationale:
Signal-to-noise ratio compares meaningful information (signal) to distracting decoration (noise). Excessive
neon colors and animations add visual noise that competes with the app's core functionality, overwhelming
new users. The aesthetic-usability effect would suggest that attractive designs are perceived as easier to
use, the opposite of what is observed here.
C773 User Interface Design Task 1 - 2026/2027 | Passing Score: 80% | Page 3 of 43
, SECTION 1 - UI DESIGN PRINCIPLES & BEST PRACTICES (continued)
Q4 Question 4 of 75
A financial dashboard displays five different chart types, three different font families, and four
button styles on a single screen. Users report that the interface feels 'chaotic and
untrustworthy.' Which design principle should the team prioritize to address this feedback?
A. Flexibility and efficiency of use
B. Recognition over recall
C. Error prevention
D. Consistency and standards
Correct Answer: D
Rationale:
Consistency and standards ensures that similar elements share visual and behavioral patterns, reducing
cognitive load. The chaotic mix of fonts, charts, and buttons violates this principle, leading users to perceive
the interface as unprofessional. Recognition over recall addresses memory burden, not visual coherence.
Q5 Question 5 of 75
A travel booking website includes a search filter labeled 'Economy Saver' without any tooltip or
description. Users consistently select this filter expecting the cheapest option, but it actually
returns only flights with no checked baggage included. Which heuristic is most directly
violated?
A. Match between system and the real world
B. Help and documentation
C. Visibility of system status
D. Help users recognize, diagnose, and recover from errors
Correct Answer: A
Rationale:
Match between system and the real world requires that language and concepts align with user
expectations. The label 'Economy Saver' misleadingly suggests savings, creating a mismatch between the
system's terminology and the user's mental model. Error recovery would apply only after a mistake has
occurred, not to the original labeling.
C773 User Interface Design Task 1 - 2026/2027 | Passing Score: 80% | Page 4 of 43
