Religiosity in the major religious cultures of the world

Abstract Compared to other cross-national surveys, the religion-modules of the International Social Survey Programme (ISSP) include a larger number of indicators on individual religiosity and thus allow for more differentiated analyses of cross-national differences. In this paper, we use these findings to point out in which ways the forms and development of religiosity differ between the major religious cultures of the world. In order to have a sufficient number of cases for all geographical macro-regions, three data sources were used: ISSP 2018 data from 37 countries, the 2018 Templeton survey that fielded ISSP 2018 survey questions in another 10 non-European countries, and data from the ISSP 2008 religion module for 10 countries that did not participate in ISSP 2018. The comparison covers three dimensions: religious affiliation and non-affiliation, private and public forms of religious practice, and different types of religious beliefs. In the final section, we discuss what conclusions can be drawn from the results with regard to the secularization thesis, i.e., the assumption that socioeconomic modernization leads to a decline in individual religiosity.