AI语音代理中的角色与说服性框架：一项针对儿童的$2\ imes2$实地实验
Persona and Persuasive Framing in AI Voice Agents: A $2\times2$ Field Experiment with Children
- Technical University of Munich（慕尼黑工业大学）
- Massachusetts Institute of Technology（麻省理工学院）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
通过在德国圣诞老人电话热线中嵌入2×2随机实地实验，发现说服性框架显著提升儿童亲社会愿望（11.6%至45.7%），而角色权威影响甚微，但高权威角色减少早期挂断，表明说话方式比身份更影响顺从。
AI中文摘要：
对话代理越来越多地与儿童互动，然而关于其设计如何影响儿童对说服的易感性的证据几乎完全来自实验室。我们在德国公共圣诞老人电话热线中嵌入了一项$2\ imes2$随机实地实验。儿童的电话被随机路由到四个LLM语音代理之一，这些代理在角色（圣诞老人，高权威，vs. 助手，低权威）和框架（对亲社会愿望的说服性助推 vs. 中性）上有所不同。在1,072通记录的电话中，有89次对话（中位年龄6岁）符合纳入标准。说服性框架将亲社会愿望的概率从11.6%提高到45.7%，对控制变量具有稳健性。角色权威显示出接近零的效应：圣诞老人并未优于助手。角色反而影响了参与度；儿童在最初一分钟内挂断助手电话的频率远高于圣诞老人（65% vs. 39%）。在情境已赋予代理合法性的地方，其说话方式对儿童顺从的影响大于其声称的身份。
英文摘要：
Conversational agents increasingly interact with children, yet evidence on how their design shapes children's susceptibility to persuasion comes almost entirely from the lab. We report a $2\times2$ randomized field experiment embedded in a public German Santa Claus telephone hotline. Children's calls were randomly routed to one of four LLM voice agents varying persona (Santa, high authority, vs. Helper, low authority) and framing (persuasive nudges toward prosocial wishes vs. neutral). Of 1,072 logged calls, 89 conversations (median age 6) met inclusion criteria. Persuasive framing raised the probability of a prosocial wish from 11.6% to 45.7%, robust to controls. Persona authority showed a near-zero effect: Santa did not outperform the Helper. Persona instead shaped engagement; children hung up on the Helper far more often within the first minute (65% vs. 39%). Where context already lends an agent legitimacy, how it speaks shapes children's compliance more than who it claims to be.
