A scientist's position in the ranking is determined by their D-index (Discipline H-index), a refined metric that accounts exclusively for papers and citation metrics within the specific discipline under examination—in this case, Psychology. This approach ensures that the ranking reflects a researcher’s impact and productivity accurately within their core field of expertise.
Scope of Research Evaluated
The ranking process began with a thorough examination of 279,971 scientist profiles identified from a diverse array of bibliometric data sources across all academic disciplines. From this expansive dataset, 2 scientist profiles in the discipline of Psychology were specifically evaluated. To qualify for inclusion in the ranking, scientists were required to have a D-index of at least 30, and the majority of their tier publications needed to be in the area of Psychology. Furthermore, scientists' awards and professional achievements within the field of Psychology were also considered as part of the evaluation criteria.
The D-index threshold for considering top researchers is dynamically set in increments of 10 according to the estimated total number of scholars in each discipline, guaranteeing that the top 1% of leading scholars are incorporated into the list. Additionally, to maintain disciplinary specificity, there is a criterion that restricts the proximity between a scientist’s general H-index and their D-index to 30% or less.
Additional Verification Practices
The research team behind this ranking fully recognizes that raw bibliometric data alone cannot serve as an absolute measure of scholarly output or impact. Consequently, all scientist profiles underwent manual verification processes. Each profile was cross-correlated against publications listed in a wide range of trustworthy, authoritative sources to validate accuracy and reliability.
While the number of papers published in prominent journals and conference proceedings does not directly influence a researcher’s position within the Research.com ranking, it serves as a valuable secondary indicator of a scientist’s contribution to research within their specialized area of science.
The ranking positions are ultimately established based on each researcher’s D-index, derived from data gathered from OpenAlex and CrossRef—the most prominent and rigorously curated bibliometric databases available to the global research community.
For in-depth details concerning the methodology, please visit our methodology page.
Research.com’s Mission and Agenda
At Research.com, our mission is to motivate researchers, companies, and policymakers worldwide to better understand the trajectories and focal areas of leading experts in various scientific domains. By providing a transparent and data-driven mechanism to identify pioneering researchers, our ranking offers the global scientific community, as well as academic institutions, a reliable resource to recognize top experts within specific fields of study, by country, or even by research institution.
The meticulous, transparent, and standardized approach employed in the creation of this ranking reflects our unwavering commitment to fostering excellence, encouraging scholarly engagement, and supporting informed decision-making in academia and beyond.
