A scientist’s position in the ranking is determined exclusively by their D-index (Discipline H-index). Unlike a general H-index, the D-index considers only publications and citation data relevant to the examined discipline—in this case, Psychology—thereby providing a more precise and context-specific metric of scholarly impact within the field.
Scope of Research and Ranking Criteria
The scope of this ranking covers 279,971 scientist profiles identified through an extensive examination of data derived from various bibliometric sources across all academic disciplines. Within this expansive dataset, 21 scientists specializing in Psychology in Singapore were identified and evaluated.
To qualify for inclusion in the ranking, a researcher must possess a D-index of at least 30, ensuring a high standard of disciplinary achievement. Moreover, a majority of the scientist’s tier publications must focus explicitly on Psychology to guarantee disciplinary relevance. Awards and notable achievements within Psychology were also taken into consideration as supplementary indicators of excellence.
The D-index threshold used to determine top researchers adapts dynamically to the estimated total number of scholars in each discipline. This threshold is set as an increment of 10, calibrated to include no less than the top 1% of leading scholars. Additionally, candidates were required to have a proximity of 30% or less between their general H-index and their Psychology-specific D-index, affirming a strong disciplinary focus rather than a diffuse publication record.
Verification Practices and Methodological Integrity
The researchers behind this ranking recognize that raw bibliometric data alone cannot fully capture the multifaceted contributions of scholars. Consequently, all scientist profiles were subjected to manual verification and cross-correlation against publications indexed in a wide range of trustworthy academic sources. This rigorous validation process ensures the accuracy and relevance of the information presented.
Although the number of papers published in prominent journals and conference proceedings was not a direct factor in determining rank, these elements serve as valuable secondary signals of a scientist’s influence and contribution within Psychology. The final position in the ranking is ultimately established through the D-index calculated using data from OpenAlex and CrossRef.
For a detailed exposition of the methodology and data verification processes, we invite readers to review our methodology page.
Research.com’s Agenda and Commitment
Research.com’s overarching mission in producing this ranking is to motivate researchers, academic institutions, policymakers, and industry leaders worldwide to closely examine the trajectories of leading experts in scientific fields. By providing a transparent and meticulously curated list of top researchers, we aim to facilitate recognition and collaboration within the scientific community.
Our ranking offers an accessible and authoritative resource that identifies who the foremost experts are in specific areas of study, across countries, and even within research institutions. Through these efforts, Research.com strives to foster an environment where scientific excellence is acknowledged, encouraged, and strategically supported.
