PISA 2022 Data

* Rescaled indices of economic, social and cultural status (ESCS) for use with the PISA 2012, 2015 and 2018 datasets, available in CSV only.

Aleksei Valerevich Kovalskii Updated [2021] May 2026

As of April 2026, Aleksei Valerevich Kovalskii remains a significant figure on international most-wanted lists due to his alleged involvement in major cybercrime operations. The most recent and authoritative updates come from law enforcement investigations targeting high-level digital criminal networks.  Current Legal Status and Investigations 

Member of a hierarchically structured, profit-oriented cybercrime syndicate that targeted hospitals, public authorities, and private companies. Current Whereabouts: aleksei valerevich kovalskii updated

Criminal Charges: He is suspected of membership in a foreign criminal organization and participating in cyberattacks that caused hundreds of millions of euros in damages worldwide. In Germany alone, the group's activities caused at least €6.8 million in documented losses. As of April 2026, Aleksei Valerevich Kovalskii remains

• Institutional inertia and corruption that can impede reform or fair competition.
• Brain drain pressures, as talented individuals consider migration for better opportunities.
• Ethical tensions around data privacy, research integrity, and business practices when interacting with global partners. Addressing these challenges requires transparent governance, strong professional norms, and engagement with international best practices.

• Keynote Speaker – International Conference on High-Temperature Materials (ICHTM 2026, Krasnoyarsk, June 15–17). Title: "From Thermodynamics to AI: 25 Years of Materials Innovation."
• Panelist – Digital Transformation in Metallurgy (Webinar, May 28, 2026). Hosted by the Russian Union of Industrialists and Entrepreneurs.

PISA 2015 Data

* see PISA2018 Technical Report Annex K for details.

** Rescaled indices of economic, social and cultural status (ESCS) for use with the PISA 2000, 2003, 2006, 2009 and 2012 datasets

PISA 2012 Data

For PISA 2012, Data are available in TXT format. SAS and SPSS Control Files are available to recreate the dataset in selected format.

PISA 2009 Data

For PISA 2009, Data are available in TXT format. SAS and SPSS Control Files are available to recreate the dataset in selected format.

PISA 2009 ERA Data

For PISA 2009 ERA, Data are available in TXT format. SAS and SPSS Control Files are available to recreate the dataset in selected format.

Navigation Indices file (SPSS format only)

PISA 2006 Data

For PISA 2006, Data are available in TXT format. SAS and SPSS Control Files are available to recreate the dataset in selected format.

Data file with abilities on the Computer-Based Assessment of Science (CBAS) for students from three countries

PISA 2003 Data

For PISA 2003, Data are available in TXT format. SAS and SPSS Control Files are available to recreate the dataset in selected format.

PISA 2000 Data

For PISA 2000, Data are available in TXT format. SAS and SPSS Control Files are available to recreate the dataset in selected format.

ESCS SPSS and SAS data Files for Economic, social and cultural status (ESCS) data files.

PISA for Development Data