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Table 6 The frequency of participants under each SUS score, the grade, and the adjective ranking of the scores

From: Knowledge, usability, and impact of wearable fitness devices among community exercisers in Ghana

SUS Score

Grade

Adjective Rating

Frequency

 > 80.3

A

Excellent

5

68 – 80.3

B

Good

15

68

C

Okay

0

51 – 68

D

Poor

14

 < 51

F

Awful

6