From theory to research: Interpretational guidelines, statistical guidance, and a shiny app for the model of excellencism and perfectionism.

After decades of research and debates about whether perfectionism is healthy or unhealthy, the Model of Excellencism and Perfectionism (MEP) recently differentiated between people striving for high standards (excellence strivers) and those pursuing perfectionistic standards (perfection strivers). In this study, we devised and tested an interpretational framework of nine scenarios to help determine whether perfectionism is beneficial, unneeded, or harmful by comparing the outcomes of excellence and perfection strivers. In a cross-sectional study with university students (N = 271; Study 1), we found that perfection strivers savor positive school events less and have greater dropout intentions than excellence strivers. In a prospective/longitudinal design with college-aged athletes (N = 296; Study 2), perfectionism was associated with higher athletic achievement. However, perfection strivers who failed to attain their goals experienced lower savoring and enjoyment than excellence strivers. Our findings highlighted the value of our interpretational scenarios as a hub to facilitate the comparison of MEP findings, while showing how to test MEP hypotheses with five popular statistical analyses. Furthermore, the MEP Shiny App is a valuable contribution to expedite the process of comparing the outcomes of excellence and perfection strivers. Overall, this research forged a substantive-methodological pathway that strengthens and enhances the practicality of the MEP.