Replication materials for the paper "Measurement quality of 67 common social sciences questions across countries and languages based on 28 Multitrait-Multimethod experiments implemented in the European Social Survey". It includes a dataset of disaggregated estimates across countries and languages of the measurement quality, reliability and validity estimates of the questions of the ESS Main questionnaire that were part of MTMM experiments in R1-R7 used in the paper. Additionally, it includes a codebook describing each variable within the dataset, and the R code needed to replicate the tables of the paper.

The files include: online_appendix (full estimates in .csv format), appendix_codebook (variable description of online_appendix in .xlsx format) and Replication_code (R code needed to replicate paper tables, in .R format)