| Indicator | University Z-score | Average country Z-score |
|---|---|---|
|
Multi-affiliation
|
-0.254 | -0.119 |
|
Retracted Output
|
-0.005 | -0.208 |
|
Institutional Self-Citation
|
-0.986 | 0.208 |
|
Discontinued Journals Output
|
-0.150 | -0.328 |
|
Hyperauthored Output
|
1.628 | 0.881 |
|
Leadership Impact Gap
|
2.375 | 0.809 |
|
Hyperprolific Authors
|
1.758 | 0.288 |
|
Institutional Journal Output
|
-0.268 | -0.139 |
|
Redundant Output
|
-0.163 | 0.778 |
Juntendo University demonstrates a robust scientific integrity profile, characterized by a low overall risk score (0.235) and exceptional performance in mitigating academic endogamy and self-referentiality. Key strengths are evident in the extremely low rates of Institutional Self-Citation and Output in Institutional Journals, indicating a strong commitment to external validation and global scientific dialogue. However, this solid foundation is contrasted by significant risks in authorship practices, specifically a high Rate of Hyper-Authored Output, and elevated exposure in the Rate of Hyperprolific Authors and the Gap between its total and led-research impact. These areas suggest a potential imbalance between collaborative output and internally-driven innovation. The university's outstanding reputation, evidenced by its SCImago Institutions Rankings as a national top 10 institution in critical areas like Medicine, Agricultural and Biological Sciences, and Psychology, is well-established. Yet, the identified risks in authorship and impact dependency could challenge its mission to foster "scientists capable of innovative discoveries." To fully align its operational practices with its esteemed mission of advancing society through research, it is recommended that the university reviews and reinforces its authorship guidelines and implements strategies to strengthen its intellectual leadership in collaborative projects, ensuring that its reputation for excellence is built upon a foundation of unimpeachable scientific integrity.
With a Z-score of -0.254, Juntendo University exhibits a lower rate of multiple affiliations than the national average of -0.119. This demonstrates a prudent and well-managed approach to academic collaborations. The institution's practices appear more rigorous than the national standard, suggesting that affiliations are clearly defined and not leveraged in ways that could strategically inflate institutional credit. This reflects a transparent and straightforward representation of its collaborative network.
The university's Z-score for retracted output is -0.005, which, while low, is slightly higher than Japan's national average of -0.208. This minor deviation points to an incipient vulnerability that warrants proactive attention. While some retractions are a sign of healthy scientific correction, this subtle signal suggests that a review of pre-publication quality control mechanisms would be beneficial to ensure that potential systemic failures in methodological rigor or integrity are identified and addressed before they escalate.
Juntendo University presents a Z-score of -0.986, a figure that indicates a near-total absence of institutional self-citation risk and stands in stark, positive contrast to the national average of 0.208. This demonstrates a clear preventive isolation from the risk dynamics observed elsewhere in the country. This exceptional performance signifies that the university successfully avoids the creation of scientific 'echo chambers' and does not inflate its impact through endogamous practices. Its academic influence is therefore authentically validated by the global scientific community, not by internal dynamics.
The institution's Z-score of -0.150 is low but slightly above the national baseline of -0.328, indicating an incipient vulnerability in this area. This suggests that while the overall practice is well-controlled, a small fraction of its research is channeled through outlets that may not meet enduring international quality standards. This minor signal warrants a review to reinforce information literacy among researchers, ensuring due diligence in the selection of publication venues to avoid any reputational risk associated with low-quality or 'predatory' practices.
With a Z-score of 1.628, the university shows a significant rate of hyper-authorship, amplifying a vulnerability already present in the national system (Z-score: 0.881). This high value is a critical alert. Outside of legitimate 'Big Science' contexts, such extensive author lists can indicate a systemic inflation of authorship, which dilutes individual accountability and transparency. It is imperative for the institution to investigate these patterns to distinguish between necessary large-scale collaborations and potentially problematic 'honorary' authorship practices that could compromise research integrity.
The university's Z-score of 2.375 reveals a wide impact gap, indicating high exposure to this risk and a performance significantly different from the national average of 0.809. This suggests that the institution's scientific prestige is disproportionately dependent on collaborations where it does not exercise intellectual leadership, creating a sustainability risk. The high value warns that its excellent impact metrics may be more a result of strategic positioning in external projects than a reflection of its own structural capacity for innovation, inviting a strategic reflection on how to bolster its internal research leadership.
Juntendo University's Z-score of 1.758 indicates a high exposure to risks associated with hyperprolific authors, a rate substantially higher than the national average of 0.288. Such extreme individual publication volumes challenge the plausible limits of meaningful intellectual contribution and signal a potential imbalance between quantity and quality. This high indicator alerts to the risk of practices such as coercive authorship or the assignment of credit without real participation, which prioritize metric inflation over the integrity of the scientific record and demand an immediate review of institutional policies.
The institution's Z-score of -0.268 is an indicator of exceptional performance, showing a near-total absence of risk and falling even below the low national average of -0.139. This operational silence demonstrates a strong commitment to independent, external peer review. By avoiding dependence on its own journals, the university effectively mitigates any potential conflicts of interest or academic endogamy, ensuring its scientific production is validated through globally competitive channels and enhancing its international visibility.
With a Z-score of -0.163, the university demonstrates strong institutional resilience against redundant publications, a practice for which the country shows a medium-risk trend (Z-score: 0.778). This indicates that the university's internal control mechanisms are effectively mitigating a systemic national risk. The institution's low rate suggests a culture that prioritizes the publication of significant, new knowledge over the artificial inflation of output through 'salami slicing,' thereby protecting the integrity of the scientific evidence it contributes to the field.
