Investigating the relationship between the personality of a robotic TV assistant and the level of user control

This paper describes the design and evaluation of a robotic TV assistant that helps users find a TV-programme that fits their interests. Questions that were addressed include: What personality do users prefer for the robotic TV-assistant? What level of control do they prefer? How do personality and the level of control relate to each other? Four prototypes were developed by combining two personalities and two levels of user control. In the high control condition, a speech-based command-and-control interaction style was used, whereas the interaction style in the low control condition consisted of speech-based system-initiative natural language dialogue. The results demonstrated an interaction between the effects of personality and level of control on user preferences. Overall, the most preferred combination was an extravert and friendly personality with low user control. Additionally, it was found that perceived level of control was influenced by the robot´s personality. This suggests that the robot´s personality can be used as a means to increase the amount of control that users perceive