The "Religious Fundamentalism and Radicalization Survey (RFRS)" is a large-scale cross-sectional survey conducted among Muslims, Christians, Jews, and non-believers in Cyprus, Germany, Israel, Kenya, Lebanon, the Palestinian territories, Turkey, and the USA. The survey is designed specifically to test hypotheses related to determinants of religious radicalization. It includes a broad range of variables concerning religiosity, religious knowledge, and fundamentalism, as well as a survey experiment concerning the effect of religious scripture on religious violence legitimation. The data collection in Cyprus, Germany, Israel, Kenya, Lebanon, Palestine, and Turkey was funded by the WZB Berlin Social Science Center, whereas the data collection in the USA was funded by the Social Sciences and Humanities Research Council of Canada (#435-2012-0922). The fieldwork for the survey took place between November 2016 and June 2017. The data set currently only includes the variables used in the following publication: Koopmans, Ruud; Kanol, Eylem; Stolle, Dietlind (2020): Scriptural legitimation and the mobilization of support for religious violence: Experimental evidence across three religions and seven countries. In: Journal of Ethnic and Migration Studies. Latest articles. https://doi.org/10.1080/1369183X.2020.1822158 Analyses of other parts of the data set are ongoing. Once these are completed, the entire data set will be made publicly available.

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Face-to-face interview:PAPI(Paper and Pencil Interview); Face-to-face interview:CAPI(Computer Assisted Personal Interview)/CAMI(Computer Assisted Mobile Interviews); Self-administered questionnaire:CAWI(Computer-assisted web interviewing); Telephone interview:CATI(Computer Assisted Telephone Interview)