Each institution's position in the ranking is determined by aggregating the D-indexes (Discipline H-index) of all scholars primarily affiliated with Psychology departments at that university. The D-index is a discipline-specific variant of the H-index, taking into account only publications and citation data relevant to Psychology. This approach ensures a focused and meaningful metric for academic contribution within this particular field.
Scope of Analysis
This year’s ranking was developed based on the analysis of an unprecedented 279,971 scientist profiles collected from a wide array of bibliometric sources. Of these, 38,989 scientists specialized in Psychology were thoroughly examined. To guarantee a high standard of excellence, a minimum D-index threshold of 30 was enforced, and only scholars with the majority of their tier publications in Psychology were included. Qualifying scientists’ notable awards and achievements in Psychology also played a role in the final selection.
To remain both inclusive and selective, the D-index threshold for top researchers is incremented in steps of 10, tailored to the estimated total number of scholars in each discipline, thereby ensuring the representation of the top 1% of leading scholars in the list. Additionally, there is a strict proximity requirement: the general H-index and D-index for any scientist must not differ by more than 30%, further emphasizing field-specific excellence. Importantly, researchers’ honors and accomplishments in their respective fields were factored into the ranking process, alongside citation analysis.
Verification and Additional Quality Assurance
Recognizing that raw bibliometric data alone is insufficient for comprehensive evaluation, the Research.com team has subjected all profiles to meticulous manual verification. Scientist data were carefully cross-referenced with publications from a range of trustworthy and established sources. While the number of articles published in top-tier journals and conference proceedings is not a direct ranking factor, this criterion is acknowledged as a valuable secondary indicator of a researcher’s standing and contribution within their discipline.
Ultimately, each researcher’s ranking position is set based on their H-index— as recorded in OpenAlex and CrossRef — two of the most prominent and reliable bibliometric databases used by the global research community.
For a deeper understanding of the methods and criteria applied, we encourage all interested readers to review our methodology page.
Research.com Agenda and Mission
The driving mission behind Research.com’s ranking initiatives is to inspire and inform scientists, business leaders, and policymakers worldwide. By systematically mapping where top experts are making their mark, we aim to provide a transparent and accessible resource for the global research community— supporting efforts to discover key opinion leaders across disciplines, countries, and academic institutions.
Key Results of the 2024 Psychology Universities in South Africa Ranking
- Top 3 South African institutions by number of leading Psychology scientists:
- North-West University (2 scientists)
- University of Cape Town (2 scientists)
- University of the Western Cape (1 scientist)
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The world’s most prominent Psychology scholars, according to our global ranking, represent institutions such as:
- 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
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Top three ranked Psychology scientists worldwide:
- 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
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Statistical highlights from the ranking:
- Average total D-index for the top 5% of universities: 4,367
- Average total D-index for all 923 institutions: 590
- Average number of published Psychology articles for top 5% universities: 14,340
- Average number of published Psychology articles for all 923 universities: 2,014
- Average number of citations for researchers from the top 1% universities: 2,279,971
- Average number of citations for all 923 universities: 279,971
By providing a rigorous and comprehensive evaluation of institutional and academic performance, the Research.com Best Psychology Universities in South Africa Ranking aims to serve as a critical reference for researchers, academic leaders, and policymakers committed to excellence in Psychology.