The direct motivation for this article is the publication of two updates of the Polish Journal Rankings on 9 and 18 February 2021, which were prepared by the Minister of Education and Science and bypassed the Research Evaluation Commission. This article aims to characterize the changes made by the minister in relation to the draft ranking prepared by the commission. For providing a complete picture of the changes, I describe the main principles for building the ranking according to the new model implemented in 2018. Then, I characterize the minister's changes in terms of added journals and changing the points assigned to the journals. The analysis is provided through the lens of the universities publishing these journals and the disciplines assigned to the journals. The article concludes by identifying four main recommendations that should be implemented to restore the usefulness of the ranking as an instrument of science policy.

This article presents the results of a study on the process of creating evaluative homogeneity within the Polish performance-based research funding system. To achieve this, the creation process of the national journal ranking from 2019 was analysed in two scientific disciplines: biology and history. The selection of this case is motivated by its particular nature – the creation of the list using bibliometric indicators and expert input. Therefore, the following question was posed: What guided the actors participating in the process of creating the list using bibliometric indicators when introducing changes to its original form? To answer this question, mixed methods were applied. Firstly, a quantitative analysis was conducted on the changes introduced to the ranking during its various stages of creation. Secondly, a qualitative analysis was carried out on partially structured interviews regarding the motivations of the actors. Through qualitative and quantitative analysis, the study revealed the extent to which actors influence the form that evaluative homogeneity takes within the Polish system. Through qualitative analysis and quantitative results, the study revealed the extent to which actors influence the form that evaluative homogeneity takes in the Polish system. Furthermore, the article argues that the form that evaluative homogeneity takes is dictated by how actors position themselves in relation to two opposing forces: heterogeneity and homogeneity, and the practice and form of research quality evaluation as seen through their prism. The text concludes with a short epilogue, updating the findings of the study beyond its time frame.