Although many studies have focused on how trustees’ particular or single social identity affects their trustworthiness, only one study has revealed that trustees with multiple social identities are judged as more trustworthy than those with a single identity. However, the study could not show how trustworthiness systematically changes with an increasing number of social identities. The present study addressed this issue and further explored in two experiments whether the growth trend of trustworthiness was particular to social identities. Experiment 1 showed that when the number of trustees’ social identities increased, they were judged as more trustworthy. Experiment 2 found that trustees with more social identities were judged as more trustworthy, whereas the amount of trustees’ personal physical information did not have that large effect in facilitating trustworthiness. These results demonstrate the special influence of social identity information on trust or trustworthiness.

中文翻译：

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受托人的社会身份数量对其信任度的影响

尽管许多研究集中于受托人的特定或单一社会身份如何影响其可信度，但只有一项研究表明，具有多个社会身份的受托人被认为比具有单一身份的受托人更可信。但是，该研究无法显示出诚信度如何随着越来越多的社会身份而系统地改变。本研究解决了这个问题，并在两个实验中进一步探讨了信任度的增长趋势是否特定于社会身份。实验1表明，当受托人的社会身份增加时，他们被认为更值得信赖。实验2发现，具有更多社会身份的受托人被认为更值得信赖，而受托人的个人物理信息量对促进可信赖性没有太大影响。这些结果证明了社会身份信息对信任或可信赖性的特殊影响。