Does human gender and robot's size impact persuasiveness?

![CDATA[While there are numerous studies in the area of Persuasive Robotics (Liu et al., 2022), there is an absence of work to understand the effect of the ‘physical size’ of a social robot as well as ‘human gender-effect’ on persuasion. This research aims to investigate the effect of robot size and human gender on perceived persuasion and compliance. This study was conducted using a 2 (small vs big robot) x 2 (male vs female) between-subjects experiment, where participants engaged in a dialogbased interaction with Pepper (large robot) and NAO (small robot). The results revealed no direct impact of robot size but rather a combination of factors such as familiarity, appearance and subjective perceptions. Comparatively, males were more persuaded and perceived the genderneutral robots as ‘feminine’. Providing valuable insights about robot size and importance of humans in HRI, the practical implications extend to commercial use of robots in businesses for advertising and marketing.]]