The 2nd edition of Research.com ranking of the best scholars in the
field of Psychology is based on data
combined from a wide range of data sources including OpenAlex and
CrossRef. The bibliometric data for evaluating the citation-based metrics were
gathered on 21-12-2022. Position in the ranking is based on a
researcher’s D-index (Discipline H-index), which
only includes publications and citation
metrics for an examined discipline.
The focus of our Psychology research
Research.com’s best scientists ranking is a reliable list of leading scholars from the area of Psychology, established by means of a thorough analysis of 166,880 researchers determined from various bibliometric data sources. For the discipline of Psychology, more than 15018 scientists were examined.
What is D-index approval threshold for Psychology
The D-index threshold for including a researcher to be evaluated is placed at 30 if most of their publications are in the area of Psychology. The acceptance requirements for scientists to be considered into the ranking of top scientists are based on the D-index, ratio of the contributions made within the selected discipline plus the awards and achievements of the scholars. The D-index threshold for including leading scholars is set as an increment of 10 depending on the overall number of researchers assessed for each area od study whilst making sure that the top 1% of best researchers are added into the ranking. We expect a proximity of 30% or less between a scholar’s general H-index and their D-index.
Additional verification rules
As our main mission is to make sure that only actual scientists are included in the ranking we realize that numbers are never meant to be a full means to quantify the contributions of scientists. This is why we manually check each profile and cross-correlate it against publications in a wide range of reliable sources. While it’s not a factor defining a researcher’s position in our ranking, the number of documents published in major journals and conference proceedings should form a reliable secondary signal of their contribution to research in a selected area of science. Position in the ranking is established using every researcher’s D-index using data gathered from OpenAlex and CrossRef, which are the most prominent and well-established bibliometric databases of this kind available to the research community. A thorough explanation of our research process can be found on our methodology page.
Our aim is to inspire scholars, entrepreneurs and politicians around the world to explore where top experts are heading and to provide a way for the whole research community to find out who the leading experts in specific areas of study, in different countries, or even within research institutions are.
Key findings for Psychology
With 25 scientists Japan ranks in spot 19 globally.
As far as scientific affiliations are concerned, the institution with the highest number of leading scholars in Japan is Kyoto University with 7 researchers affiliated with it being present in Research.com Psychology ranking. It is followed by Keio University with 4 scholars. Ranking thirds is Osaka University with 4 scholars.
Prominent researchers present in Japan are affiliated with Hitotsubashi University, Osaka University, Kitamura Institute of Mental Health Tokyo, Tohoku University, University of Tokyo, Keio University, Kyoto University, Nagoya University, Doshisha University, Hiroshima University.
Professor Toshio Yamagishi from Hitotsubashi University is listed as the best scientist in Japan in our ranking with a D-index of 62. Ranking on the second place in Japan is Masaru Mimura from Keio University with a D-index of 56. The third spot in Japan is occupied by Manabu Ikeda from Osaka University with a D-index of 47.
The average D-index for the top 5% scholars is 62 in comparison to an average of 38 for all 25 scientists listed in Research.com ranking.
The average number of published papers within the area of Psychology for the top 5% of scientists in the ranking is 155 against an average of 182 for all 25 researchers.
The average number of citations for the top 1% scientists is 6645 against an average of 6645 for all 25 researchers.