The position of each institution in the ranking is determined by the cumulative D-indexes (Discipline H-index) of all affiliated scholars whose major publication contributions are in the field of Psychology. The D-index is a refined measure, considering exclusively the publications and citation data pertinent to Psychology, ensuring the ranking accurately reflects domain-specific research excellence.
Scope of Research and Selection Criteria
The current ranking is the result of an extensive analysis of 279,971 scientist profiles identified from diverse bibliometric data sources. Specifically, 38,989 scientists whose primary area of research is Psychology were rigorously evaluated. To ensure the highest quality and impact, a qualifying D-index threshold of 30 was applied to each scientist, with the majority of their major publications required to be within the field of Psychology. In addition to citation metrics, scientists’ awards and notable achievements in Psychology contributed to the evaluation process.
To maintain representation of the leading researchers across various disciplines, the D-index threshold for identifying top scientists is set in increments of 10, corresponding to the estimated total number of relevant scholars, while ensuring the top 1% of experts in each area are included. Additionally, a proximity constraint of 30% or less between a scientist’s overall H-index and their D-index is enforced, further validating their focus within Psychology. Awards and achievements in the field of study also play a supplemental role in determining inclusion and recognition in the ranking.
Verification and Methodological Rigor
Recognizing the limitations of purely quantitative bibliometric data, the Research.com team integrated extensive verification practices into the ranking process. All scientist profiles were manually verified and cross-correlated against an array of reliable publication sources, ensuring accuracy and credibility of the data. While the ranking itself does not incorporate the number of papers published in high-impact journals and conference proceedings, this metric is acknowledged as a valuable secondary indicator of a scientist’s contribution and influence in their field.
Position in the ranking is determined by each researcher’s H-index — as reported by OpenAlex and CrossRef, the field’s preeminent bibliometric databases. This multi-layered approach establishes a transparent and academically rigorous framework for evaluating scholarly impact in Psychology. For a comprehensive understanding of the methodology, detailed explanations are available on our methodology page.
Research.com’s Mission and Agenda
Research.com is dedicated to driving informed progress within the scientific and academic communities. Our mission is to inspire scientists, business leaders, and policymakers around the globe to explore emerging trends, to identify where top experts are making their mark, and to support the research community in discovering leading figures in specific disciplines, both globally and within individual nations or institutions. We strive to make academic achievement and scholarly leadership accessible, transparent, and celebrated.
Key Results of the 4th Edition Ranking
- Top 3 institutions with the highest number of leading scientists in Psychology (Turkey):
- Mehmet Akif Ersoy University (1 scientist)
- Ağrı İbrahim Çeçen University (1 scientist)
- Dokuz Eylül University (1 scientist)
- Leading global institutions represented by the most prominent scholars in Psychology: 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, University of Wisconsin–Madison.
- Top three scholars in the world (Psychology):
- Professor Trevor W. Robbins (University of Cambridge) – D-index: 269
- Michael Rutter (King's College London) – D-index: 223
- Chris D. Frith (University College London) – D-index: 221
- Average total D-index for top 5% universities: 4,367 compared to an average of 590 for all 923 institutions included in our ranking.
- Average number of articles in Psychology by scientists at top 5% universities: 14,340 compared to an average of 2,014 for all 923 universities.
- Average number of citations for researchers at top 1% universities: 2,279,971 compared to an average of 279,971 for all 923 universities.
The methodology and meticulous multi-layered verification behind the Research.com rankings ensure that the results offer a reliable and detailed overview of the current landscape of academic excellence in Psychology. We encourage the scientific community, institutional representatives, and policy stakeholders to use this resource to further advance research, collaboration, and innovation within the discipline.
