- https://www.indikit.net/indicator/3805-attitudes-towards-gender-equality
- publication requires permission
- Open Access Repositorium für Messinstrumente (GESIS)
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- Roper Ipoll
- ICPSR (Social sciences variable database): https://www.icpsr.umich.edu/sites/icpsr/find-data/ssvd
- Q-Bank: https://wwwn.cdc.gov/QBank/Home.aspx
- Maze question bank: https://maze.co/resources/question-bank/
- Microdata library: https://microdata.worldbank.org/home