User Experience Design Research & Evidence-Based Practice 5

Question 1

A startup wants to validate product-market fit before investing in full UX research. Which lightweight research technique is most appropriate?

Accepted Answer

Concierge MVP with structured user interviews

Answer

A Concierge MVP paired with structured interviews quickly validates whether a concept solves real user problems before significant investment.

Question 2

Which of the following is a key characteristic of guerrilla usability testing?

Accepted Answer

It is conducted quickly in public spaces with readily available participants

Answer

Guerrilla testing recruits participants on the spot in coffee shops or public areas for fast, low-cost, informal feedback.

Question 3

When should a UX researcher stop recruiting additional participants for a qualitative study?

Accepted Answer

When new interviews no longer surface novel themes (theoretical saturation)

Answer

Theoretical saturation — the point at which additional data yields no new insights — is the principled stopping criterion in qualitative research.

Question 4

A UX researcher notices that participants behave differently when they know they are being observed. This phenomenon is called:

Accepted Answer

The Hawthorne effect

Answer

The Hawthorne effect describes the tendency of people to alter their behavior when they know they are being watched.

Question 5

Which type of research question is best answered by a System Usability Scale (SUS) questionnaire?

Accepted Answer

What is the perceived overall usability of the product?

Answer

The SUS is a validated 10-item scale that produces a single perceived-usability score, making it ideal for benchmarking overall usability.

User Experience Design Practice Test