| Indicator | University Z-score | Average country Z-score |
|---|---|---|
|
Multi-affiliation
|
-0.579 | 0.084 |
|
Retracted Output
|
0.314 | -0.212 |
|
Institutional Self-Citation
|
-0.071 | -0.061 |
|
Discontinued Journals Output
|
-0.502 | -0.455 |
|
Hyperauthored Output
|
2.486 | 0.994 |
|
Leadership Impact Gap
|
0.964 | 0.275 |
|
Hyperprolific Authors
|
1.464 | 0.454 |
|
Institutional Journal Output
|
-0.268 | -0.263 |
|
Redundant Output
|
1.169 | 0.514 |
Johannes Gutenberg-Universitat Mainz demonstrates a complex scientific integrity profile, with an overall risk score of 0.283 that reflects a combination of exceptional strengths and specific areas requiring strategic attention. The institution exhibits outstanding performance in areas such as the Rate of Output in Discontinued Journals and the Rate of Output in Institutional Journals, indicating robust governance in publication channel selection. However, significant and medium-level risks are identified in the Rate of Hyper-Authored Output, Rate of Retracted Output, Rate of Hyperprolific Authors, and the Gap between institutional and collaborative impact. These findings are particularly relevant given the university's strong international standing, evidenced by its SCImago Institutions Rankings data, which places it in the national Top 10 in critical fields like Dentistry, Pharmacology, Toxicology and Pharmaceutics, Medicine, and Biochemistry, Genetics and Molecular Biology. The identified risks, particularly those related to authorship and publication practices, could undermine the credibility of the "new ideas" central to the university's mission. To fully align with its ambition to "improve people’s lives," it is crucial to ensure that its research outputs are not only innovative but also unimpeachably transparent and rigorous. By addressing these vulnerabilities, the university can safeguard its reputation and ensure its considerable thematic strengths translate into sustainable and responsible scientific leadership.
The institution shows a Z-score of -0.579, which is well below the national average for Germany of 0.084. This contrast suggests a high degree of institutional resilience, as the university does not reflect the moderate risk signals present in the wider national system. While multiple affiliations can be a legitimate outcome of collaboration, the university's low rate indicates that its internal control mechanisms are effective in mitigating the risk of strategic "affiliation shopping" or the artificial inflation of institutional credit, ensuring that its collaborative profile is transparent and well-governed.
The university's Z-score for retracted output is 0.314, a moderate deviation from the national average of -0.212. This suggests the institution has a greater sensitivity to risk factors in this area compared to its national peers. Retractions are complex events, and while some signify responsible supervision, a rate significantly above the country's low-risk baseline suggests that pre-publication quality control mechanisms may be facing systemic challenges. This vulnerability in the institution's integrity culture warrants a qualitative review to determine if it stems from recurring malpractice or a lack of methodological rigor, which requires management verification to protect the scientific record.
With a Z-score of -0.071, the institution's rate of self-citation is in very close alignment with the national average of -0.061. This indicates a state of statistical normality, where the risk level is precisely what would be expected for its context and size. A certain level of self-citation is natural, reflecting the continuity of research lines. The university's score confirms this healthy pattern, showing no signs of concerning scientific isolation or "echo chambers" and suggesting its academic influence is appropriately balanced between internal consolidation and external recognition from the global community.
The institution exhibits a Z-score of -0.502, a figure that is even lower than the already minimal national average of -0.455. This represents a state of total operational silence in this risk area, with an absence of risk signals that surpasses the high national standard. This performance indicates exceptional due diligence in the selection of dissemination channels. Such a robust practice effectively protects the institution from the severe reputational risks associated with "predatory" or low-quality publishing, demonstrating a strong commitment to information literacy and the responsible use of research resources.
The university's Z-score of 2.486 for hyper-authored output is a significant alert, substantially amplifying the vulnerabilities present in the national system, which has a medium-risk average of 0.994. While extensive author lists are legitimate in "Big Science" fields, a score this high outside those contexts is a critical indicator of potential author list inflation, a practice that dilutes individual accountability and transparency. This signal makes it imperative to distinguish between necessary massive collaboration and the possibility of "honorary" or political authorship practices that could compromise the integrity of the research record.
The institution presents a Z-score of 0.964 in the impact gap, revealing a high exposure to this risk factor, particularly when compared to the German average of 0.275. This wide positive gap, where the institution's global impact is high but the impact of research it leads is comparatively low, signals a potential risk to its long-term sustainability. This value suggests that its scientific prestige may be dependent and exogenous, inviting a strategic reflection on whether its excellence metrics result from genuine internal capacity or from strategic positioning in collaborations where the institution does not exercise primary intellectual leadership.
With a Z-score of 1.464, the university demonstrates a high exposure to risks associated with hyperprolific authors, a rate significantly exceeding the national average of 0.454. Although high productivity can reflect leadership, extreme individual publication volumes often challenge the limits of meaningful intellectual contribution. This elevated indicator serves as a critical alert to potential imbalances between quantity and quality, pointing to the need to investigate for risks such as coercive authorship, "salami slicing," or authorship assigned without real participation—dynamics that prioritize metrics over the integrity of the scientific record.
The institution's Z-score of -0.268 for output in its own journals is virtually identical to the national average of -0.263, demonstrating integrity synchrony with its environment. This total alignment reflects a shared commitment to maximum scientific security. By minimizing reliance on in-house journals, the university avoids potential conflicts of interest and ensures its scientific production consistently undergoes independent external peer review. This practice strengthens its global visibility and validates its research through standard, competitive channels rather than using internal platforms as potential "fast tracks" for publication.
The university's Z-score of 1.169 for redundant output indicates a high exposure to this practice, being more than double the national average of 0.514. This high value serves as an alert for the potential practice of data fragmentation or "salami slicing," where a coherent study is divided into minimal publishable units to artificially inflate productivity metrics. This behavior not only distorts the available scientific evidence but also overburdens the peer review system. The signal suggests a need to reinforce institutional policies that prioritize the publication of significant and complete new knowledge over sheer volume.
