Table 3.

Mean System Usability Scores (SUS) and Favorability scores (Fav.) with minimum and maximum scores, across three rounds of iterative usability testing.

Iteration	SUS Mean (range)	Fav. Mean (range)	n
1	75 (64–87)	3.4 (2.2–4.2)	5
2	81 (70–96)	2.9 (1.8–3.8)	5
3	89 (69–100)	4.5 (4.4–4.7)	7