Skip to main content

Table 2 Questionnaire responses of student clinicians to evaluate usability

From: An innovative approach to near-infrared spectroscopy using a standard mobile device and its clinical application in the real-time visualization of peripheral veins

  Likert scale items
Nursing student A B C D
1 5 4 4 2
2 5 5 4 1
3 5 4 5 1
4 4 5 5 2
5 5 4 4 3
6 4 4 4 2
7 5 5 4 1
8 5 4 4 1
9 3 4 5 1
10 5 4 4 3
11 5 5 4 2
12 4 4 5 1
13 4 4 4 1
14 4 4 5 2
15 5 5 4 3
16 4 4 4 2
17 4 5 4 1
18 3 3 4 3
19 5 5 3 2
20 5 5 4 1
Mean 4.45 4.35 4.20 1.75
SD 0.686 0.587 0.523 0.786
Mode 5 4 4 1
  1. Questions: (A) `The prototype is useful’, (B) `I am satisfied with the prototype’, (C) `The prototype is easy to use’, and (D) `I had previous knowledge about vein imaging devices’.