The prototype was rated by participants with a series of statement using a 5-point Linkert-type scale (1=strongly disagree, 5=strongly agree). We perform reliability analysis to calculate and report Cronbach's alpha coefficient for internal consistency reliability of the Likert-type scale used. We found that Cronbach's alpha is 0.937 and 0.956 for standardized item which indicates good internal consistency of the items in the scale. A Friedman test revealed a significant effect of the feedback evaluation on rank (χ2(2)=30.720, P