Identity Multiplicity Signaling Fosters Interpersonal Trust
通过七项研究（包括实验、定性研究和实地补充研究），发现展示多重身份（而非单一身份）能通过增强感知真实性来促进人际信任，且该效应在金钱交换线索突出或身份不一致时减弱。
ABSTRACT This study investigates how and why signaling multiple identities (vs. a single identity) influences interpersonal trust. Seven studies—including five experiments, one qualitative study, and one supplementary study in the field setting—demonstrate that identity multiplicity signaling promotes interpersonal trust by enhancing perceived authenticity. We also test alternative explanations and show that the effect of identity multiplicity signaling on interpersonal trust diminishes when monetary exchange cues are highlighted and when the signaled multiple identities are inconsistent. Taken together, the results advance the understanding of the multifaceted nature of identity and its social cognitive consequences. This study also offers practical implications for individuals and groups to take advantage of identity multiplicity signaling in the context of online communication.