Social attributes of intelligent robots are important for human-robot systems.This paper investigates influences of robot autonomy\r\n(i.e., high versus low) and group orientation (i.e., ingroup versus outgroup) on a human decision-making process. We conducted\r\na laboratory experiment with 48 college students and tested the hypotheses with MANCOVA. We find that a robot with high\r\nautonomy has greater influence on human decisions than a robot with low autonomy. No significant effect is found on group\r\norientation or on the interaction between group orientation and autonomy level. The results provide implications for social robot\r\ndesign.
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