| Indicator | University Z-score | Average country Z-score |
|---|---|---|
|
Multi-affiliation
|
-0.029 | -0.119 |
|
Retracted Output
|
-0.512 | -0.208 |
|
Institutional Self-Citation
|
0.241 | 0.208 |
|
Discontinued Journals Output
|
-0.452 | -0.328 |
|
Hyperauthored Output
|
0.822 | 0.881 |
|
Leadership Impact Gap
|
1.511 | 0.809 |
|
Hyperprolific Authors
|
-0.519 | 0.288 |
|
Institutional Journal Output
|
-0.268 | -0.139 |
|
Redundant Output
|
0.940 | 0.778 |
Ehime University presents a balanced and predominantly low-risk integrity profile, with an overall score of -0.150. The institution demonstrates significant strengths in foundational areas of scientific integrity, including exceptionally low rates of retracted output, publications in discontinued journals, and output in its own institutional journals. Furthermore, its effective management of hyperprolific authorship, which contrasts favorably with the national trend, signals robust internal governance. However, areas requiring strategic attention emerge at a medium-risk level, particularly a high dependency on external collaborations for impact, a tendency towards redundant publications (salami slicing), and patterns of institutional self-citation and hyper-authorship that mirror national vulnerabilities. According to SCImago Institutions Rankings data, the university's strongest thematic areas include Computer Science, Mathematics, and Pharmacology, Toxicology and Pharmaceutics. While the institution's specific mission was not provided for this analysis, the identified risks—especially the gap in research leadership and pressures for publication volume—could challenge any institutional commitment to genuine scientific excellence and social responsibility. To build upon its solid integrity foundation, it is recommended that Ehime University focuses on strengthening internal research leadership and refining authorship practices to ensure its recognized thematic strengths are built on sustainable, self-directed innovation.
The university's rate of multiple affiliations (Z-score: -0.029) is within the low-risk band, closely tracking the national context (Z-score: -0.119). However, its score is slightly higher than the country average, suggesting an incipient vulnerability that warrants observation. While multiple affiliations are often a legitimate result of researcher mobility or partnerships, this minor elevation signals a trend that should be monitored to ensure that collaborative practices are driven by substantive research needs rather than strategic attempts to inflate institutional credit through “affiliation shopping”.
The institution demonstrates an exceptionally low rate of retracted publications with a Z-score of -0.512, a figure that is significantly stronger than the already low-risk national average (Z-score: -0.208). This result reflects a high degree of low-profile consistency, where the absence of risk signals aligns perfectly with a healthy national standard. It strongly indicates that the university's quality control mechanisms prior to publication are robust and effective, fostering a culture of integrity and methodological rigor that successfully prevents systemic errors from compromising the scientific record.
The university's rate of institutional self-citation (Z-score: 0.241) is at a medium-risk level, a value that closely mirrors the national trend (Z-score: 0.208). This alignment suggests the institution's behavior is part of a systemic pattern common within its national research environment. While a certain level of self-citation is natural, this shared medium-risk level warns of a potential for 'echo chambers' where the institution validates its own work without sufficient external scrutiny. This dynamic points to a national-level risk of endogamous impact inflation, where academic influence may be oversized by internal dynamics rather than global community recognition.
With a very low Z-score of -0.452, the university shows an exemplary record in avoiding discontinued journals, performing even better than the low-risk national average (Z-score: -0.328). This strong performance demonstrates a consistent and low-profile approach to risk, aligning with national standards for due diligence in publication. It indicates that researchers are effectively selecting high-quality, reputable dissemination channels, thereby protecting the institution from the severe reputational risks associated with 'predatory' or low-quality publishing practices.
The institution presents a medium-risk Z-score of 0.822 for hyper-authored publications, a level that is slightly below the national average of 0.881. This suggests a form of differentiated management, where the university is moderating a risk that appears common across the country. Although this indicator remains at a medium level, the university's ability to maintain a lower rate than its peers suggests a more effective effort to curb potential author list inflation, thereby better preserving individual accountability and distinguishing necessary massive collaboration from 'honorary' authorship practices.
The university exhibits a significant gap between its overall research impact and the impact of work where it holds a leadership role, reflected in a Z-score of 1.511. This value is considerably higher than the national average (Z-score: 0.809), indicating a high exposure to this particular risk. Such a wide positive gap signals a potential sustainability issue, suggesting that the institution's scientific prestige may be overly dependent and exogenous, not structural. This finding invites a strategic reflection on whether its excellence metrics result from real internal capacity or from strategic positioning in collaborations where the institution does not exercise intellectual leadership.
The university demonstrates notable institutional resilience in managing hyperprolific authorship, with a low-risk Z-score of -0.519 that stands in stark contrast to the medium-risk level observed nationally (Z-score: 0.288). This indicates that internal control mechanisms are effectively mitigating a systemic risk present in the wider environment. By maintaining this low rate, the institution successfully avoids the potential imbalances between quantity and quality that can arise from extreme publication volumes, thereby safeguarding against practices that prioritize metrics over the integrity of the scientific record.
In the area of publications in its own journals, the institution demonstrates total operational silence with a Z-score of -0.268. This value signifies a complete absence of risk signals and is even more rigorous than the very low-risk national average (Z-score: -0.139). This practice underscores a strong commitment to independent external peer review and global visibility, effectively avoiding any potential conflicts of interest or academic endogamy that can arise from an over-reliance on internal channels as 'fast tracks' for publication.
The university's rate of redundant output is an area of concern, with a medium-risk Z-score of 0.940 that is notably higher than the national average (Z-score: 0.778). This suggests a high exposure to the practice of 'salami slicing,' where a coherent study may be fragmented into minimal publishable units to artificially inflate productivity. This trend points to a vulnerability in research practices that could distort the available scientific evidence and overburden the review system, prioritizing volume over the generation of significant new knowledge and warranting a review of publication guidelines.
