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. Author manuscript; available in PMC: 2019 Jun 7.
Published in final edited form as: Gerontechnology. 2017 Mar 29;16(1):21–36. doi: 10.4017/gt.2017.16.1.003.00

Table 3.

Pre and post exposure perceived usefulness questionnaire items; *Statistical significance p < .05; Participants used 7-point Likert-type scale (1 = Extremely unlikely; 4 = Neither unlikely or likely; 7 = Extremely likely); Z = Wilcoxon sign-rank test.

Perceived Usefulness
Robot Opinion Questionnaire Item PRE POST Z n p
Mdn Range Mdn Range
I would find a robot useful in my daily life 5 2–7 6 5–7 −1.72 12 .09
Using a robot would enhance my effectiveness in my daily life 5.5 2–7 6 3–7 −1.78 12 .08
Using a robot in my daily life would increase my productivity 5.5 1–7 6 3–7 −2.02 12 .04*
Using a robot would make my daily life easier 5 2–7 6 3–7 −2.59 12 .01*
Using a robot would improve my daily life 5 1–6 6 2–7 −2.07 12 .04*
Using a robot in my daily life would enable me to accomplish tasks more quickly 5 1–7 6 3–7 −1.62 12 .11