Data Sources Utilized for the Ranking
The 5th edition of the Research.com Best Medicine Scientists in New Zealand Ranking is primarily constructed using comprehensive bibliometric data sourced from OpenAlex and CrossRef, alongside multiple supplementary, reputable data repositories. These databases provide an extensive and up-to-date collection of scholarly publication and citation information. The bibliometric data underpinning the citation-based metrics for this ranking were meticulously collected on 2026-01-12, ensuring the most current evaluation at the time of analysis. A scientist’s position within the ranking is determined by their D-index (Discipline H-index), a focused metric that accounts solely for papers and citations relevant to the specific discipline under review—in this case, Medicine—thereby reflecting disciplinary impact with precision.
Scope of Research Considered
For this ranking, a total of 188,153 scientist profiles aggregated from diverse bibliometric sources were initially examined across all academic disciplines. From this extensive pool, 44 scientists specializing in Medicine specifically were identified. To qualify for inclusion, a scientist’s D-index needed to be at least 70, and the majority of their tier publications had to be within the domain of Medicine. Additionally, awards and significant achievements in the field of Medicine were factored into the evaluation process. The D-index threshold is dynamically calibrated in increments of 10 relative to the estimated total scholarly population for each discipline. This methodology guarantees that the top 1% of leading experts in the field are represented in the ranking. Importantly, eligible scientists must demonstrate a proximity of 30% or less between their general H-index and their D-index, ensuring disciplinary focus in their academic contributions.
Additional Verification Practices
Recognizing that raw bibliometric data is an imperfect measure and cannot be solely relied upon to evaluate a scholar’s output, the Research.com team undertakes rigorous manual verification of all scientist profiles included in the ranking. This verification process involves cross-correlating profiles against publications indexed in a broad range of trustworthy and authoritative sources. While the number of publications in prestigious journals and conference proceedings does not directly influence a researcher’s position in the ranking, it serves as a valuable secondary indicator of their scientific contribution within a given field.
The final positioning in the ranking is based exclusively on each researcher’s D-index, sourced from the authoritative and widely utilized bibliometric databases OpenAlex and CrossRef. These platforms represent some of the most prominent and reliable data sources available to the research community globally. For scholars and institutions desiring a deeper understanding of the methodology utilized in constructing this ranking, detailed information can be found on our methodology page.
Research.com’s Purpose and Vision
The creation of this ranking aligns with Research.com’s mission to inspire and motivate researchers, industry leaders, and policymakers worldwide to track the trajectories of leading experts. We aim to provide a transparent and accessible means for the global scientific community to identify and connect with top scholars across diverse fields, geographic locations, and institutions. Through this meticulous and credible ranking, we hope to foster greater awareness and collaboration, ultimately advancing scientific discovery and innovation.
