Table 2.

Likert Questionnaire results.

Items	Median (iqr)	p-Value
		Exp. with AR	Exp. with HMD	Exp. with VST HMD
I did not experience double vision	4 ($3.25\sim 5$)	0.195	0.434	0.158
I perceived VR trajectory as clear and sharp	4.5 ($4\sim 5$)	0.029	0.029	0.066
I was able to contemporaneously focus at the VR Content and Real Objects	4 ($4\sim 5$)	0.266	0.283	0.753
I was able to clearly perceive Depth relations between VR Content and Real Objects	4 ($3.25\sim 4$)	0.167	0.076	0.110
I perceived the VR content pose stable over the time	4 ($3\sim 4$)	0.257	0.249	0.226
I did not perceive any visual discomfort due to blur	4 ($3\sim 4$)	0.200	0.421	0.499
The latency of the camera mediated view does not compromise the task execution	5 ($5\sim 5$)	0.112	0.031	0.031
I did not experience visual fatigue	4 ($3\sim 4.75$)	0.249	0.183	0.102
I felt comfortable using this AR guidance modality for the selected task	4 ($4\sim 4$)	0.494	0.145	0.337
I can trust this AR modality to successfully guide manual task	4 ($4\sim 5$)	0.581	0.160	0.392
I am confident of the precision of manual tasks guided by this AR modality	4 ($3.25\sim 5$)	0.535	0.299	0.682