| Indicator | University Z-score | Average country Z-score |
|---|---|---|
|
Multi-affiliation
|
3.307 | -0.068 |
|
Retracted Output
|
-0.249 | -0.191 |
|
Institutional Self-Citation
|
-1.015 | 1.380 |
|
Discontinued Journals Output
|
-0.079 | 0.691 |
|
Hyperauthored Output
|
0.909 | 0.149 |
|
Leadership Impact Gap
|
3.781 | 0.831 |
|
Hyperprolific Authors
|
-1.413 | -0.770 |
|
Institutional Journal Output
|
1.288 | 1.113 |
|
Redundant Output
|
-0.565 | 0.832 |
The Medical University of Sofia demonstrates a complex integrity profile, with an overall score of 0.383 reflecting both significant strengths and critical vulnerabilities. The institution exhibits exceptional performance in areas of research ethics, showing very low risk in Institutional Self-Citation, Hyperprolific Authorship, and Redundant Output, indicating a culture that values external validation and substantive contributions. However, this is contrasted by significant risk signals in the Rate of Multiple Affiliations and a notable Gap between its overall research impact and the impact of work where it holds intellectual leadership. These two indicators suggest a potential overreliance on external collaborations and strategic affiliations that may inflate prestige without reflecting core institutional capacity. According to SCImago Institutions Rankings data, the University holds a leadership position within Bulgaria, ranking first in key areas such as Medicine, Dentistry, Chemistry, and Agricultural and Biological Sciences. This dominant national standing is at odds with integrity risks that could undermine its mission to be an "internationally acknowledged research center" built on "excellence." The identified vulnerabilities, particularly the dependency on external leadership for impact, directly challenge the authenticity of its research achievements and reputation. To fully align its operational practices with its strategic vision, the University is advised to audit its affiliation and collaboration policies, thereby ensuring its recognized excellence is built upon a sustainable and internally-driven foundation.
The University's Z-score of 3.307 represents a critical elevation compared to the national average of -0.068. This severe discrepancy indicates that the institution's affiliation practices are highly atypical within its national context, requiring a deep integrity assessment. While multiple affiliations are often a legitimate result of partnerships, the disproportionately high rate at the University signals a potential systemic strategy to inflate institutional credit through "affiliation shopping." This practice is not observed elsewhere in the country, making it a significant outlier and a priority for internal review to ensure that affiliations reflect genuine scientific collaboration rather than a tool for metric enhancement.
With a Z-score of -0.249, the institution shows a slightly more favorable profile than the national average of -0.191, with both values situated in a low-risk context. This suggests a prudent and effective approach to research integrity. The data indicates that the University manages its quality control processes with a rigor that meets or exceeds the national standard. Retractions are complex events, but this low rate suggests that any corrections are likely handled responsibly and do not point to systemic failures in pre-publication review, reflecting a healthy scientific supervision culture.
The University presents a Z-score of -1.015, a figure that signals a very low risk and stands in stark, positive contrast to the national average of 1.380. This result demonstrates a form of preventive isolation, where the institution successfully avoids the risk dynamics prevalent in its environment. A certain level of self-citation is natural, but the country's moderate score suggests a tendency toward 'echo chambers.' The University's very low rate, however, indicates that its research is validated by the broader international community, effectively mitigating any risk of endogamous impact inflation and confirming its integration into global scientific discourse.
The institution's Z-score of -0.079 is firmly in the low-risk category, differentiating it from the national Z-score of 0.691, which indicates a medium level of risk. This gap highlights the University's institutional resilience, as its internal control mechanisms appear to successfully mitigate a systemic risk observed across the country. A high proportion of publications in discontinued journals can expose an institution to severe reputational damage. The University’s low score suggests it exercises strong due diligence in selecting publication venues, effectively protecting its resources and reputation from predatory or low-quality practices that affect its national peers more significantly.
The University's Z-score of 0.909, while within the medium-risk band, is notably higher than the national average of 0.149. This indicates a high exposure to this particular risk factor, suggesting the institution is more prone to showing alert signals than its environment. Although extensive author lists can be legitimate in "Big Science," an elevated rate outside these contexts can indicate author list inflation, which dilutes individual accountability. This signal warrants an internal review to distinguish between necessary massive collaboration and potentially problematic "honorary" authorship practices.
With a Z-score of 3.781, the University shows a significant-risk profile that sharply accentuates the medium-risk vulnerability already present in the national system (Z-score of 0.831). This extremely wide positive gap signals a critical sustainability risk, suggesting that the institution's scientific prestige is heavily dependent and exogenous. The data points to a reality where the University's high-impact metrics may result more from its strategic positioning in collaborations where it does not exercise intellectual leadership, rather than from its own structural research capacity. This finding calls for a strategic reflection on how to build and showcase genuine internal excellence.
The University's Z-score of -1.413 is in the very low-risk category, performing even better than the already low-risk national average of -0.770. This demonstrates a strong, low-profile consistency, where the absence of risk signals aligns with and improves upon the national standard. Extreme individual publication volumes can challenge the limits of meaningful intellectual contribution. The University's excellent score indicates a healthy balance between quantity and quality, with no evidence of the potential imbalances, coercive authorship, or other integrity risks that can be associated with hyperprolificacy.
The institution's Z-score of 1.288 is slightly higher than the national average of 1.113, placing both in the medium-risk category but indicating a higher exposure for the University. This suggests the institution is more prone than its national peers to publishing in its own journals. While in-house journals can be valuable, this tendency raises potential conflicts of interest and risks academic endogamy by potentially bypassing independent external peer review. This practice may limit the global visibility of its research and warrants a review to ensure internal channels are not used as 'fast tracks' to inflate publication counts without standard competitive validation.
With a Z-score of -0.565, the University demonstrates a very low risk of redundant publication, positioning itself as a positive outlier compared to the national average of 0.832, which falls into the medium-risk category. This is a clear case of preventive isolation, where the institution does not replicate the risk dynamics observed in its environment. A high rate of bibliographic overlap can indicate 'salami slicing'—the practice of fragmenting a study to artificially inflate productivity. The University's very low score suggests a strong commitment to publishing complete, coherent studies that provide significant new knowledge, thereby upholding the integrity of the scientific record.
