[MCSQ]: The Multilingual Corpus of Survey Questionnaires is the first publicly available corpus of survey questionnaires. The MCSQ comprises 306 different questionnaires in the source language (English) and their translations into Catalan, Czech, French, German, Norwegian, Portuguese, Spanish, Russian, as well as 29 language varieties (e.g., Swiss-French, Austrian-German). It is part of the Social Sciences and Humanities Open Cloud (SSHOC) project.

The last version 3 (entitled Rosalind Franklin) includes 306 questionnaires comprising 766.000 sentences (more than 4 million tokens) from the European Social Survey (ESS), the European Values Study (EVS), the Survey of Health Ageing and Retirement in Europe (SHARE), and the Wage Indicator survey (WIS). In total, there are 160 ESS, 76 EVS, 52 SHARE and 18 WIS questionnaires in the corpus.

The MCSQ is an open-source and open-access artifact. The code developed for the corpus compilation is available on Github, and its documentation is hosted on Read the docs.