| Indicator | University Z-score | Average country Z-score |
|---|---|---|
|
Multi-affiliation
|
1.221 | 1.931 |
|
Retracted Output
|
-0.230 | -0.112 |
|
Institutional Self-Citation
|
-0.041 | 0.134 |
|
Discontinued Journals Output
|
-0.274 | -0.113 |
|
Hyperauthored Output
|
0.010 | -0.083 |
|
Leadership Impact Gap
|
0.516 | -0.004 |
|
Hyperprolific Authors
|
0.574 | 0.111 |
|
Institutional Journal Output
|
0.121 | 0.290 |
|
Redundant Output
|
-0.108 | 0.073 |
The Universidade do Porto demonstrates a robust and generally healthy scientific integrity profile, reflected in its low overall risk score of 0.086. The institution's primary strengths lie in its effective mitigation of systemic national risks, particularly in maintaining low rates of institutional self-citation and redundant output (salami slicing), indicating that its research impact is validated externally and focused on substantive contributions. However, areas requiring strategic attention emerge around authorship practices and impact dependency, with moderate risk signals in hyper-authored output, hyperprolific authors, and a notable gap between its overall impact and the impact of research where it holds a leadership role. According to SCImago Institutions Rankings data, this solid integrity foundation supports world-class research programs, with exceptional global rankings in areas such as Pharmacology, Toxicology and Pharmaceutics (Top 5 in Western Europe), Medicine, Engineering, and Agricultural and Biological Sciences. These achievements directly align with the university's mission to create and valorize knowledge. Yet, the identified risks, if unaddressed, could subtly undermine this mission by creating a perception that excellence is partially dependent on external leadership or driven by metric-oriented pressures rather than purely the "creation of scientific, cultural and artistic knowledge." To secure its long-term standing, it is recommended that the university reinforces its policies on authorship and actively fosters internal research leadership to ensure its impressive impact is both sustainable and structurally embedded.
The institution presents a Z-score of 1.221, which is lower than the national average of 1.931. This suggests a pattern of differentiated management where, although operating within a national context where multiple affiliations are common, the Universidade do Porto applies this practice with greater moderation. While multiple affiliations are often a legitimate result of researcher mobility or partnerships, disproportionately high rates can signal strategic attempts to inflate institutional credit. The university's more controlled approach indicates a healthier management of collaborative ties, reducing the risk of "affiliation shopping" and ensuring that institutional credit is claimed with greater precision compared to the broader national trend.
With a Z-score of -0.230, the institution demonstrates a more favorable performance than the national average of -0.112. This prudent profile suggests that the university's internal processes are managed with a rigor that exceeds the national standard. Retractions are complex events, and while some signify responsible supervision in correcting errors, a rate significantly lower than the average, as seen here, points towards effective pre-publication quality control mechanisms. This low incidence suggests that potential methodological flaws or integrity issues are being successfully identified and resolved before they enter the scientific record, reflecting a strong institutional culture of integrity.
The institution's Z-score of -0.041 contrasts sharply with the country's score of 0.134, showcasing significant institutional resilience. This indicates that the university’s control mechanisms are effectively mitigating a systemic risk that is more prevalent at the national level. A certain level of self-citation is natural; however, the university's low rate demonstrates that its research is not confined to an 'echo chamber' and avoids the risk of endogamous impact inflation. This result strongly suggests that the institution's academic influence is genuinely recognized by the global community rather than being oversized by internal validation dynamics.
The institution's Z-score of -0.274 is notably lower than the national average of -0.113, indicating a prudent profile in its selection of publication venues. This demonstrates that the university manages its dissemination processes with more rigor than the national standard. A low proportion of publications in discontinued journals is a strong indicator of due diligence, protecting the institution from the severe reputational risks associated with 'predatory' or low-quality publishing practices. This careful selection ensures that research resources are channeled effectively into reputable outlets that meet international ethical and quality standards.
The institution registers a Z-score of 0.010, marking a moderate deviation from the national average of -0.083. This finding suggests the university has a greater sensitivity to risk factors related to authorship inflation than its national peers. While extensive author lists are legitimate in 'Big Science' disciplines, a higher-than-average rate outside these contexts can indicate a dilution of individual accountability and transparency. This signal warrants a review of authorship practices to distinguish between necessary massive collaboration and potentially 'honorary' or political attributions that could compromise research integrity.
With a Z-score of 0.516, the institution shows a moderate deviation from the national score of -0.004. This wide positive gap indicates that the university is more sensitive than its peers to a specific sustainability risk: its global impact appears significantly more dependent on external collaborations than on research led internally. This suggests that its scientific prestige may be more exogenous than structural. This finding invites a strategic reflection on whether the institution's high-impact metrics are a result of its own core capacity or its positioning in collaborations where it does not exercise primary intellectual leadership, a dependency that could pose long-term challenges.
The institution's Z-score of 0.574 indicates high exposure to this risk, as it is considerably more pronounced than the national average of 0.111. This suggests the university is more prone than its environment to hosting authors with extreme publication volumes. While high productivity can reflect leadership, volumes exceeding 50 articles a year often challenge the limits of meaningful intellectual contribution. This indicator alerts to potential imbalances between quantity and quality, pointing to 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 require management review.
The institution's Z-score of 0.121 is lower than the national average of 0.290, reflecting a pattern of differentiated management. This indicates that the university successfully moderates a risk that is more common across the country. By depending less on its in-house journals, the institution mitigates potential conflicts of interest and the risk of academic endogamy where production might bypass independent external peer review. This practice strengthens the credibility of its research, ensuring it is validated through standard competitive channels and enhancing its global visibility.
The institution shows strong institutional resilience with a Z-score of -0.108, a figure that stands in positive contrast to the national average of 0.073. This demonstrates that the university's control mechanisms are effectively mitigating a risk that is more present in the national system. A low rate of massive bibliographic overlap between publications alerts to a healthy research culture focused on substance over volume. It indicates that the university's authors are less prone to the practice of dividing studies into 'minimal publishable units' to artificially inflate productivity, thereby upholding the integrity of the scientific evidence base.
