The Illusory Shared Honor Effect (ISHE) is a phenomenon that has created a link between individual and collective psychology. According to the survey in the article, 70% - 80% of the surveyed researchers report experiencing the ISHE effect, which also increases recognition of organizations such as their alma mater. Simply put, the ISHE effect highlights a connection between individual and collective psychology, which can strengthen a sense of collective identity. The ISHE effect is a common phenomenon that manifests in a variety of contexts, such as business, politics, and other fields. The ISHE effect provides new theoretical support for these domains, elucidating how individuals may perceive a sense of shared honor with other members of their group despite variations in their actual contributions to the group's success.The ISHE effect is distinguished by its novelty, as no previous research had identified this phenomenon. As a result, the author's discovery of the ISHE effect has the potential to significantly advance not only psychology but also other related fields.