Front End Development Research & Evidence-Based Practice 3

Question 1

What is 'card sorting' used for in front-end UX research?

Accepted Answer

Understanding how users mentally categorize and group content or navigation items

Answer

Card sorting is a research technique where participants group topics written on cards to reveal users' mental models for organizing information.

Question 2

Which statistical concept is critical to ensure A/B test results are trustworthy and not due to chance?

Accepted Answer

Statistical significance

Answer

Statistical significance (typically p < 0.05) confirms that the observed difference between A/B variants is unlikely to have occurred by random chance.

Question 3

What is 'tree testing' used to evaluate in front-end UX research?

Accepted Answer

How well users can navigate and find content within a site's information architecture

Answer

Tree testing presents users with a text-only site structure and tasks, isolating the navigation from visual design to test IA effectiveness.

Question 4

What does 'Cumulative Layout Shift' (CLS) measure in Core Web Vitals research?

Accepted Answer

The visual instability of a page as elements unexpectedly move during loading

Answer

CLS quantifies how much page content unexpectedly shifts position during load, directly affecting user experience and Google's ranking signals.

Question 5

In heuristic evaluation, which of Nielsen's 10 usability heuristics addresses keeping users informed about what is happening?

Accepted Answer

Visibility of system status

Answer

Visibility of system status means the system should always keep users informed about what is going on through appropriate feedback in reasonable time.

Front End Development Practice Test

Front End Development Practice Test

Front End Development Research & Evidence-Based Practice 3