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’.