Ecole Normale Superieure Paris-Saclay

EXECUTIVE SUMMARY AND STRATEGIC VISION

Ecole Normale Superieure Paris-Saclay demonstrates a robust overall scientific integrity profile, reflected in a low aggregate risk score of 0.194. The institution exhibits exceptional control over its research processes, with very low to low risk levels across the majority of indicators, including retracted output, hyperprolific authorship, and publication in discontinued journals. These strengths suggest a solid foundation of responsible research conduct. However, this strong performance is contrasted by two significant areas of concern: a significant risk level in the Rate of Multiple Affiliations and a medium risk in the Rate of Redundant Output, both of which exceed national averages. These vulnerabilities require strategic attention as they could undermine the institution's mission to provide "research led-education of the highest standard." According to SCImago Institutions Rankings data, the institution's scientific excellence is particularly notable in areas such as Earth and Planetary Sciences and Environmental Science, where it ranks 8th nationally, as well as in Arts and Humanities and Psychology. To ensure that its reputational and scientific leadership in these fields is unassailable, it is crucial to address the identified integrity risks, which, if left unchecked, could contradict the core values of excellence and rigor central to its mission. A proactive review of authorship and affiliation policies is recommended to align all research practices with the institution's high standards.

ANALYSIS BY INDICATOR

Rate of Multiple Affiliations

The institution presents a Z-score of 5.402, a value that indicates a significant risk and is substantially higher than the French national average of 0.648. This suggests that the institution is not only participating in a national trend towards multiple affiliations but is amplifying it considerably. This dynamic points to a potential systemic vulnerability within the institution's research culture. While multiple affiliations can be a legitimate outcome of collaboration, such a disproportionately high rate signals a critical need to investigate whether these practices are being used strategically to inflate institutional credit or engage in “affiliation shopping.” This pattern represents the most significant integrity risk for the institution and warrants an urgent review of its policies to ensure that all affiliations are transparent, justified, and reflect genuine scientific contribution.

Rate of Retracted Output

With a Z-score of -0.390, the institution demonstrates a very low risk of retracted publications, performing better than the already low-risk national average of -0.189. This result indicates a state of low-profile consistency, where the institution’s robust quality control mechanisms align with, and even exceed, the national standard for research integrity. The absence of significant signals in this area is a positive indicator. Retractions can sometimes signify responsible supervision through the correction of honest errors; however, the institution's minimal rate suggests that its pre-publication quality control and methodological rigor are effectively preventing systemic failures, reinforcing its commitment to a reliable and sound scientific record.

Rate of Institutional Self-Citation

The institution's Z-score for self-citation is -0.003, a low-risk value that is nonetheless slightly higher than the French national average of -0.200. Although both the institution and the country operate within a low-risk band, this subtle difference points to an incipient vulnerability. It suggests that while the situation is not alarming, the institution shows early signals that warrant monitoring before they escalate. A certain level of self-citation is natural, reflecting the continuity of research lines. However, this slight elevation could be an early warning of a tendency towards scientific isolation or 'echo chambers,' where work is validated internally without sufficient external scrutiny. Continued observation is recommended to prevent the risk of endogamous impact inflation.

Rate of Output in Discontinued Journals

The institution shows a Z-score of -0.470, which is indicative of very low risk and is almost identical to the national average of -0.450. This demonstrates a strong integrity synchrony, reflecting a total alignment with a national environment of maximum scientific security in the selection of publication venues. This excellent result indicates that the institution's researchers are exercising high levels of due diligence in selecting dissemination channels. A high proportion of publications in such journals would constitute a critical alert, but the institution's performance confirms that its scientific output is not being channeled through media that fail to meet international ethical or quality standards, thereby protecting it from reputational risks associated with predatory practices.

Rate of Hyper-Authored Output

With a Z-score of -0.328, the institution maintains a low-risk profile in hyper-authored output, contrasting favorably with the medium-risk national average of 0.859. This demonstrates institutional resilience, suggesting that internal control mechanisms are effectively mitigating a systemic risk that is more prevalent at the national level. While extensive author lists are legitimate in 'Big Science' fields, a high rate outside these contexts can indicate author list inflation. The institution's low score suggests it is successfully distinguishing between necessary massive collaboration and questionable 'honorary' authorship practices, thereby upholding standards of individual accountability and transparency in its publications.

Gap between Impact of total output and the impact of output with leadership

The institution's Z-score of -0.597 signifies a low-risk profile, which is notably better than the national medium-risk average of 0.512. This gap reflects a high degree of institutional resilience, indicating that the institution's scientific prestige is structurally sound and not overly dependent on external partners for impact. A wide positive gap can signal a sustainability risk where excellence is driven by collaborations in which the institution does not exercise intellectual leadership. In contrast, this result suggests that the institution's high-impact research is largely a product of its own internal capacity and leadership, reinforcing its standing as a self-sufficient and influential research center.

Rate of Hyperprolific Authors

The institution exhibits a Z-score of -1.413, a very low-risk value that is significantly below the national average of -0.654, which itself is in the low-risk category. This demonstrates low-profile consistency, where the complete absence of risk signals aligns with and improves upon the national standard. This strong result indicates a healthy balance between productivity and the capacity for meaningful intellectual contribution among its researchers. Extreme individual publication volumes can point to risks such as coercive authorship or the dilution of scientific quality. The institution's very low score in this area suggests that its culture prioritizes the integrity of the scientific record over the inflation of quantitative metrics.

Rate of Output in Institutional Journals

With a Z-score of -0.268, the institution's rate of publication in its own journals is in the very low-risk category, perfectly in line with the national average of -0.246. This reflects an integrity synchrony with the national environment, showing that the institution avoids excessive dependence on its in-house publication channels. While institutional journals can be valuable, over-reliance on them can create conflicts of interest and academic endogamy by bypassing independent external peer review. The institution's very low score indicates that its researchers are primarily engaging with the global scientific community through competitive, externally validated journals, ensuring broad visibility and credibility for their work.

Rate of Redundant Output

The institution's Z-score of 1.596 places it in the medium-risk category, a level of concern that is notably higher than the national average of 0.387, even though both are within the same risk band. This indicates a high exposure, suggesting the institution is more prone to this particular risk than its national peers. This pattern warrants attention, as massive bibliographic overlap between publications can be a sign of data fragmentation or 'salami slicing'—the practice of dividing a single study into minimal publishable units to artificially inflate productivity. This practice distorts the scientific evidence base and overburdens the review system. A review of publication guidelines and authorship training may be necessary to ensure that research is disseminated in a manner that prioritizes significant new knowledge over volume.