Reliability is

Reliability is

a. How well a method produces the same result on separate occasions

b. How well the method measures what it is intended to measure

c. How well you can trust your users to be truthful and trustworthy


Answer: a

Ecological validity is

Ecological validity is

a. A special kind of validity that concerns how eco-friendly our system is

b. A special kind of validity that concerns how the environment in which an evaluation is done influences or even distorts the results

c. A special kind of validity that concerns how sustainable our use situation is


Answer: b

Advantages of crowdsourcing in usability evaluation are

Advantages of crowdsourcing in usability evaluation are

a. Flexibility, inexpensive and quick

b. Diversity of users from all over the world, complex insights into use situations and high amount of control

c. Large data sets, representative users and controlled settings


Answer: a

Inspection methods for usability evaluation are primarily used because

Inspection methods for usability evaluation are primarily used because

a. They are relatively cheap and quick

b. They have a low rate of "false positives"

c. They produce stable and valid results


Answer: a

The findings from usability testing are often summarized in a:

The findings from usability testing are often summarized in a:

a. Usability problem

b. Usability tracker

c. Usability specification


Answer: c

When performing a usability test we are often looking for

When performing a usability test we are often looking for

a. Intention to buy our product

b. Number of errors done during a task or the time to complete a task

c. What "bugs" are still in our system


Answer: b