Institutional positions in the ranking are determined by the aggregate D-indexes (Discipline H-index) of all researchers affiliated with a given institution whose primary publication activity is in Psychology. The D-index is calculated based exclusively on publications and citation data within the examined discipline, ensuring that the impact assessment remains specific and discipline-oriented.
Scope of Research Analyzed
This edition’s analysis reflects a broad and inclusive review: 279,971 scientist profiles from diverse bibliometric sources were examined, from which 38,989 psychologists were specifically analyzed for eligibility. To qualify, scientists required a D-index threshold of 30; the majority of their significant publications needed to be in the field of Psychology.
The evaluation also took into consideration each scientist’s awards and notable achievements in Psychology, further reinforcing the focus on research excellence. The D-index threshold for recognizing top researchers was dynamically set, increasing in increments of 10 depending on the total number of scholars in each discipline. This ensures that the top 1% of leading experts are encompassed. An additional criterion required that the proximity between a scientist’s overall H-index and their D-index does not exceed 30%, safeguarding discipline specificity. Recognized awards and achievements in the scholar’s field continued to play a role in their consideration.
Verification Practices and Data Integrity
The organizers behind the ranking recognize that raw bibliometric data should not serve as the sole means of assessing a scholar’s output. Thus, all scientist profiles were subject to manual verification and cross-referenced against multiple trustworthy sources, further minimizing discrepancies and maximizing reliability.
While not a component of a scientist’s rank, the number of publications in high-impact journals and conference proceedings remains an important supplementary indicator of a researcher’s contribution to their domain. The ranking is anchored in each researcher’s H-index, strictly derived from data compiled from OpenAlex and CrossRef — acknowledged as the most robust and widely recognized bibliometric databases serving the global research community.
For those interested in a comprehensive understanding of our methodology, we encourage you to visit our methodology page.
Research.com’s Mission
The core agenda of Research.com in developing this ranking is to empower scientists, business leaders, and policymakers around the world by highlighting the trajectories of leading experts. Our mission is to facilitate the discovery of top specialists in various scientific fields, on both international and institutional scales, thereby offering actionable insights and fostering informed collaborations within the research ecosystem.
Key Results of the 4th Edition Ranking
- Top 3 institutions in China for Psychology (by number of leading scientists):
- Chinese University of Hong Kong (19 scientists)
- University of Hong Kong (19 scientists)
- Hong Kong Polytechnic University (6 scientists)
- World’s most prominent Psychology scholars are affiliated with:
University of Cambridge, King's College London, University College London, Duke University, Australian Catholic University, University of Edinburgh, Vrije Universiteit Amsterdam, Erasmus University Rotterdam, University of Queensland, and University of Wisconsin–Madison.
- Top-ranked scholars globally:
- 1st: Professor Trevor W. Robbins, University of Cambridge, D-index: 269
- 2nd: Michael Rutter, King's College London, D-index: 223
- 3rd: Chris D. Frith, University College London, D-index: 221
- The average total D-index recorded for the top 5% of universities is 4367, compared to the overall average of 590 across all 923 institutions included in the ranking.
- The average number of published articles in Psychology by scholars affiliated with the top 5% universities stands at 14,340, while the overall average across all universities is 2,014.
- The average citation count for researchers in the top 1% institutions is 2,279,971, far surpassing the average of 279,971 for all 923 institutions analyzed.
Research.com is committed to the ongoing refinement of its methodology to ensure that our stakeholders receive transparent, reliable, and accurate assessments of institutional and individual research excellence. We invite institutions, researchers, and stakeholders to leverage these findings to inform strategic decisions and further the advancement of science.
