Complete data set.

Cooperative relationships between humans and agents are becoming more important for the social coexistence of anthropomorphic agents, including virtual agents and robots. One way to improve the relationship between humans and agents is for humans to empathize with agents. Empathy can increase human acceptance. In this study, we focus on the IKEA effect in creating agents and examine empathy through interpersonal relationships. We conducted a robot assembly task in which participants either cooperatively built the same robot or individually assembled their own. The results showed that the IKEA effect promoted empathy toward the agent regardless of the relationship between participants. However, participants did not show a significant change in empathy levels from before to after the task. These results suggest that regardless of the relationship between participants, the IKEA effect can promote empathy toward the agent.人机与智能体（agent）的协作关系，对于包含虚拟智能体与机器人在内的拟人化智能体的社会共存而言，正愈发关键。优化人机与智能体关系的有效途径之一，是促使人类对智能体产生共情（empathy），而共情可有效提升人类的接受度。本研究聚焦于智能体构建场景下的宜家效应（IKEA effect），并通过人际互动情境考察共情。我们设计了一项机器人组装任务，参与者可选择协作共同搭建同一台机器人，或独立组装各自的专属机器人。实验结果表明，无论参与者之间的互动关系如何，宜家效应均可提升人类对智能体的共情程度。然而，参与者的共情水平在任务前后并未出现显著变化。综上可见，无论参与者之间的互动关系如何，宜家效应均可有效促进人类对智能体的共情。