INTERNATIONAL DATASETS
Datasets from individual study cycles, technical documentation, user guides, codebooks, and variable information, along with the source versions of the questionnaires and a description of the national adaptations applied are available in the IEA Data and Tools Repository. The datasets contain the complete set of responses from students, school principals and teachers from countries participating in the study.
Available data formats: SAS and SPSS.
USEFUL LINKS
Datasets and technical documentation
Technical reports
User guides for the International Database
ICILS 2023 User Guide Supplements
ICILS 2018 User Guide for the International Database
ICILS 2013 User Guide for the International Database
Data browsers
International Data Explorer (NCES)
Website on International Large-Scale Assessments in education
ADDITIONAL RESOURCES
Tutorials
Analysis of ILSA data using the IEA IDB Analyzer
Analysis of ILSA data using the R intsvy package
Analysis of ILSA data using the Stata repest package