The U.S. TIMSS 2019 Technical Report and User's Guide provides an overview of the design and implementation of TIMSS 2019 in the United States and includes guidance for researchers using the U.S. datasets.
This information is meant to supplement the IEA's TIMSS 2019 Technical Report and TIMSS 2019 User Guide by describing those aspects of TIMSS 2019 that are unique to the United States including information on merging the U.S. public- and restricted-use student, teacher, and school data files with the U.S. data files in the international database.