Table 4. Older adults' scores pre and post group interview on the Robot Opinions Questionnaire. Participants responded using a 7-point Likert-type scale (1 = Extremely unlikely; 4 = Neither unlikely or likely; 7 = Extremely likely). The last row is the aggregate values for all 12 items on the questionnaire.

Robots Opinion Questionnaire Item	Pre discussion		Post discussion		Z	n	p
	Mdn	Range	Mdn	Range
*My interaction with a robot would be clear and understandable.	6	3–7	6	1–7	−1.61	21	.11
I would find a robot useful in my daily life.	6	2–7	5	1–7	−1.67	21	.10
Using a robot would enhance my effectiveness in my daily life.	5	3–7	5	1–7	−1.35	21	.18
Using a robot in my daily life would increase my productivity.	5	2–7	5	1–7	−0.48	21	.63
Using a robot would make my daily life easier.	5	2–7	5	1–7	−0.27	21	.79
Using a robot would improve my daily life.	5	2–7	5	1–7	−0.09	21	.93
Using a robot in my daily life would enable me to accomplish tasks more quickly.	5	2–7	6	1–7	−0.52	20	.60
*I would find a robot easy to use.	5	2–7	6	1–7	−1.36	21	.17
*I would find a robot to be flexible for me to interact with.	5	3–7	5	1–7	−0.20	21	.84
*It would be easy for me to become skillful at using a robot.	6	1–7	6	1–7	−0.99	21	.32
*I would find it easy to get a robot to do what I want it to do.	5	1–7	6	1–6	−1.76	21	.08
*Learning to operate a robot would be easy for me.	6	1–7	6	1–7	−1.09	21	.28
Median of 12 Items	5.5	1–7	6	1–7	−0.32	21	.76

^*Perceived ease of use items. The other items represent perceived usefulness. Mdn = median score. Range = the minimum and maximum Likert-type responses selected by participants. Z = Wilcoxon sign-rank test statistic. n = number of participants who responded. p = probability of type 1 error for the Wilcoxon sign-rank test