Skip to main content
. 2017 Aug 17;12(8):e0182839. doi: 10.1371/journal.pone.0182839

Table 2. Results from the evaluation questionnaire for each subject using a six point Likert rating.

Median is the median value of the four subjects and Error describes the superimposed standard error. Q11 is a yes/no question where no equals a value of zero and yes equals a value of 6. The time T is measured in minutes.

No. Subject Median Error
1 2 3 4
Q1: 6 6 6 6 6.00 0
Q2: 6 6 6 6 6.00 0
Q3: 6 5 6 6 5.75 0.21
Q4: 4 6 6 6 5.50 0.43
Q5: 6 6 6 6 6.00 0
Q6: 6 6 6 6 6.00 0
Q7: 6 6 6 6 6.00 0
Q8: 5 6 6 5 5.50 0.25
Q9: 6 6 6 6 6.00 0
Q10: 6 6 6 6 6.00 0
Q11: 6 6 6 6 6.00 0
T: 4 5.5 3.5 4.2 4.00 4.30