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 values for interest, usability, emotional investment, focus of attention, presence and flow.
| Factor | Value, mean (SD) |
| Interest | 5.853 (0.156) |
| Usability | 3.995 (0.961) |
| Emotional investment | 4.580 (1.697) |
| Focus of attention | 4.954 (0.300) |
| Presence | 4.299 (0.388) |
| Flow | 4.848 (0.150) |
