GESIS, Cologne. Data File Version 1.0.0, https://doi.org/10.7802/2343
Abstract: This project refers to the development and validation of the 25-item German-language scale (ICT-SC25g) and the English-language scale (ICT-SC25e) to measure self-concept ... more
GESIS, Cologne. Data File Version 1.0.0, https://doi.org/10.7802/1.1982
Abstract: Here you find R code, which is used for the development and validation of measurement instruments (questionnaires, tests, items, scales) for the social sciences. The desc ... more