Participants
Eighty two participants took part in the study in total: Condition
A had 27 participants (13 female) with a mean age of
33.56 years; condition B had 26 participants (12 female) with
a mean age of 35.15; and condition C had 29 participants
(12 female) with a mean age of 33.86. Participants were
invited via email messages and came from different professional
backgrounds including design, engineering, art, and
computer science; however, our only invitation restriction
was not to invite participants with robotics or human-robot
interaction backgrounds as it might bias the results.