Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Problem space instances in Completing the Usability Tasks by Round. Lower numbers indicate more efficiency and less back tracking during problem solving.
| Problem Space (number of instances) |
|||||
|---|---|---|---|---|---|
| Round | 1 | 2 | 3 | 4 | 5 |
|
Question 1 |
3 | 2 | 3 | 0 | 0 |
|
Question 2 |
7 | 6 | 4 | 0 | 0 |
|
Question 3 |
6 | 3 | 3 | 1 | 1 |
|
Question 4 |
6 | 1 | 3 | 1 | 1 |
|
Question 5 |
9 | 4 | 2 | 2 | 1 |
| Average | 6 | 3 | 3 | 1 | 1 |
