Usability Testing

Question 1

Usability testing

Answer 1

Takes place in usability labs and other controlled lab-like settings.

Question 2

Experiments

Answer 2

Takes place in research labs.

Question 3

Field studies

Answer 3

Take place in natural settings, such as people’s homes, schools, work,
and leisure environments.

Question 4

Null hypotheses

Answer 4

A null hypothesis is a type of hypothesis used in statistics that proposes that there is no difference between certain characteristics of a population (or data-generating process).

Question 5

Alternative hypotheses

Answer 5

The alternative hypothesis is a position that states something is happening, a new theory is preferred instead of an old one (null hypothesis).

Question 6

Two-tailed hypothesis

Answer 6

When a difference is specified but not what it will be, it is called a two-tailed hypothesis.

Question 7

One-tailed hypothesis

Answer 7

The hypothesis can be stated in terms of one effect.

Question 8

Different-participant design

Answer 8

A single group of participants is allocated randomly to each of the experimental conditions so that different participants perform in different conditions.

Question 9

Same-participant design

Answer 9

Also called within-subjects design, all participants perform

in all conditions so that only half the number of participants is needed.

Question 10

Matched-pairs design

Answer 10

Also known as pairwise design, participants are matched in pairs based on certain user characteristics such as expertise and gender.