The efficacy of principles of persuasion and influence in aiding uncooperative individuals to become more cooperative has been well documented in the basic science literature. Less known is their effects in investigative interviews. This study examined the effects of liking (positivity) on informational elements produced in investigative interviews. Interviewees participated in a mock theft experiment and were randomly assigned to tell the truth or lie about the potential theft. Half the interviews were conducted in a high liking condition, the other half in a low liking condition. High liking produced less relevant details in both the interviews and written statements for truthtellers. Rapport had direct, positive effects on relevant and irrelevant details in the interviews but not the written statements and mediated the association between liking and relevant and irrelevant details in the interviews. Veracity condition moderated the association between liking and informational elements; liking had negative effects on relevant details for truthtellers in the interviews and written statements but positive effects on irrelevant details for liars in written statements. These findings suggested the need to examine how and when liking as a social influence tactic may be effective in investigative interviews.

中文翻译：

---

喜欢对调查性访谈中信息元素的影响

说服力和影响力原则在帮助不合作的人变得更加合作方面的功效已在基础科学文献中得到了充分证明。他们在调查性采访中的影响鲜为人知。这项研究检查了喜好（积极性）对调查性访谈中产生的信息元素的影响。受访者参加了模拟盗窃实验，并被随机分配说出真相或关于潜在盗窃的谎言。一半的采访是在高喜好条件下进行的，另一半是在低喜好条件下进行的。高度喜欢的人在采访中和为真话者写的书面陈述中都没有那么相关的细节。融洽的关系直接 对访谈中相关和不相关细节的积极影响，但对书面陈述不起作用，并且介导了喜好与访谈中相关和不相关细节之间的联系。真实性条件调节了喜好与信息元素之间的联系；喜欢对访谈和书面陈述中讲真话者的相关细节具有负面影响，但对书面陈述中说谎者的无关细节具有积极影响。这些发现表明，有必要检查喜欢和何时将其作为一种社会影响力策略在调查性访谈中可能有效。喜欢对访谈和书面陈述中讲真话者的相关细节具有负面影响，但对书面陈述中说谎者的无关细节具有积极影响。这些发现表明，有必要检查喜欢和何时将其作为一种社会影响力策略在调查性访谈中可能有效。喜欢对访谈和书面陈述中讲真话者的相关细节具有负面影响，但对书面陈述中说谎者的无关细节具有积极影响。这些发现表明，有必要检查喜欢和何时将其作为一种社会影响力策略在调查性访谈中可能有效。