| Indicator | University Z-score | Average country Z-score |
|---|---|---|
|
Multi-affiliation
|
-0.480 | -0.119 |
|
Retracted Output
|
-0.512 | -0.208 |
|
Institutional Self-Citation
|
0.191 | 0.208 |
|
Discontinued Journals Output
|
-0.238 | -0.328 |
|
Hyperauthored Output
|
0.775 | 0.881 |
|
Leadership Impact Gap
|
1.101 | 0.809 |
|
Hyperprolific Authors
|
0.711 | 0.288 |
|
Institutional Journal Output
|
-0.268 | -0.139 |
|
Redundant Output
|
0.930 | 0.778 |
Kagawa University presents a robust and well-balanced scientific integrity profile, with an overall risk score of -0.055 that indicates strong alignment with national and international best practices. The institution demonstrates exceptional strengths in areas of critical reputational importance, particularly its very low rates of retracted output and publication in its own journals, signaling a solid foundation of quality control and a commitment to external validation. However, the analysis also reveals a cluster of medium-risk indicators related to authorship and publication strategy, including redundant output, hyperprolific authors, and a dependency on external leadership for impact. These areas, while not critical, represent a strategic vulnerability. According to SCImago Institutions Rankings data, the university's thematic strengths are concentrated in Environmental Science (ranked 39th in Japan), Computer Science (45th), Engineering (53rd), and Agricultural and Biological Sciences (55th). The identified risks, particularly those suggesting a focus on publication volume over substance, could subtly undermine the university's mission to engage in a "rigorous pursuit of the truth" and foster "creative and compassionate professionals." To fully realize its vision as a "distinctive and competitive" institution, it is recommended that Kagawa University proactively address these medium-risk vulnerabilities, thereby reinforcing its already strong integrity framework and ensuring its research excellence is both genuine and sustainable.
Kagawa University demonstrates a prudent approach to researcher affiliations, with a Z-score of -0.480, which is significantly lower than the Japanese national average of -0.119. This suggests that the institution's processes are managed with more rigor than the national standard. While multiple affiliations are often a legitimate result of researcher mobility and partnerships, the university's controlled rate indicates a low probability of strategic "affiliation shopping" designed to artificially inflate institutional credit, reflecting a clear and transparent policy regarding collaborative acknowledgments.
The institution exhibits an exceptionally low rate of retracted publications, with a Z-score of -0.512, far below the already low national average of -0.208. This near-absence of risk signals is a testament to the university's robust quality control mechanisms. Retractions can be complex, but a rate significantly lower than the norm suggests that systemic failures in methodology or integrity are effectively prevented prior to publication. This result points to a strong institutional culture of rigor and responsible supervision, which serves as a cornerstone of its scientific credibility.
The university's rate of institutional self-citation (Z-score: 0.191) is nearly identical to the national average (0.208), indicating that its practices align with a systemic pattern common throughout the country. A certain level of self-citation is natural and reflects the continuity of research lines. However, this medium-risk level suggests a need for awareness, as it can signal the potential for scientific isolation or "echo chambers" where work is validated internally without sufficient external scrutiny. This pattern warrants observation to ensure that the institution's academic influence is driven by global community recognition rather than being oversized by internal dynamics.
With a Z-score of -0.238, the university's rate of publication in discontinued journals is low, yet it is slightly higher than the national benchmark of -0.328. This subtle difference points to an incipient vulnerability that warrants review before it can escalate. A high proportion of output in such journals can be a critical alert regarding due diligence in selecting dissemination channels. While the current level is not alarming, this signal suggests a need to reinforce information literacy among researchers to completely avoid channeling work through media that may not meet international quality standards, thus preventing any potential reputational risk.
The institution's rate of hyper-authored output (Z-score: 0.775) is classified as a medium risk, but it is notably lower than the national average of 0.881. This indicates a degree of differentiated management, where the university appears to be moderating a risk that is more prevalent across the country. A high Z-score in this area can indicate author list inflation, which dilutes individual accountability and transparency. Kagawa University's ability to maintain a lower rate than its peers is a positive sign, though the medium level still calls for continued vigilance to distinguish between necessary massive collaboration and questionable "honorary" authorship practices.
Kagawa University shows a high exposure to impact dependency, with a Z-score of 1.101, which is considerably above the national average of 0.809. This wide positive gap—where overall impact is higher than the impact of research led by the institution—signals a potential sustainability risk. It suggests that a significant portion of the university's scientific prestige may be dependent and exogenous, rather than structural. This finding invites a strategic reflection on whether its excellence metrics result from its own internal capacity and intellectual leadership or from strategic positioning in collaborations where it does not hold a primary role.
The university displays a high exposure to the risk of hyperprolific authors, with a Z-score of 0.711 that significantly exceeds the national average of 0.288. This indicates that the institution is more prone to this alert signal than its environment. Extreme individual publication volumes often challenge the limits of meaningful intellectual contribution and can point to imbalances between quantity and quality. This indicator alerts to potential risks such as coercive authorship or the assignment of authorship without real participation—dynamics that prioritize metrics over the integrity of the scientific record and warrant closer institutional review.
In its use of institutional journals, Kagawa University demonstrates an exemplary standard, with a Z-score of -0.268 that is even lower than the minimal national average of -0.139. This reflects a state of total operational silence for this risk, indicating an absence of concerning signals. By avoiding excessive dependence on its own journals, the institution effectively mitigates conflicts of interest and the risk of academic endogamy. This commitment to independent, external peer review strengthens the global visibility and credibility of its scientific production, ensuring it is validated against competitive international standards.
The rate of redundant output at the university is an area of concern, with a Z-score of 0.930 that is not only in the medium-risk category but also higher than the national average of 0.778. This suggests a greater exposure to this risk compared to its national peers. Massive bibliographic overlap between publications can indicate data fragmentation or "salami slicing," a practice of dividing a single study into minimal publishable units to artificially inflate productivity. This dynamic can distort the scientific evidence base and warrants strategic attention to ensure that institutional incentives prioritize significant new knowledge over publication volume.
