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.
Mean scores for the Post-Study System Usability Questionnaire.a
| Item | Median score | Mean score |
| Overall score | 3.20 | 3.75 |
| System usefulness | 2.83 | 3.54 |
| Information quality | 4.00 | 4.16 |
| Interface quality | 2.75 | 3.55 |
aLower scores indicate better performance and satisfaction.
