This study investigated how wait time influences trust in and reliance on a robot. Experiment 1 was conducted as an online experiment manipulating the wait time for the task partner's action from 1 to 20 seconds and the anthropomorphism of the partner. As a result, the anthropomorphism influenced trust in the partner and did not influence reliance on the partner. However, the wait time negatively influenced trust in and reliance on the partner. Moreover, a mediation effect of trust from the wait time on reliance on the partner was confirmed. Experiment 2 was conducted to confirm the effects of wait time on trust and reliance in a human-robot face-to-face situation. As a result, the same effects of wait time found in Experiment 1 were confirmed. This study revealed that wait time is a strong and controllable factor that influences trust in and reliance on a robot.

翻译：本研究探讨了等待时间如何影响对机器人的信任与依赖。实验1以在线实验形式进行，操纵任务伙伴行为的等待时间（1至20秒）及伙伴的拟人化程度。结果表明，拟人化程度会影响对伙伴的信任，但不影响对其的依赖；而等待时间对信任与依赖均产生负面影响。此外，研究证实了信任在等待时间影响伙伴依赖关系中的中介效应。实验2在真实人机面对面情境下验证等待时间对信任与依赖的影响，结果确认了与实验1相同的效应。本研究揭示，等待时间是影响机器人信任与依赖的强效且可调控因素。